如何在不使用JS的情况下在HTML中显示输入文本的工具提示

当用户将鼠标悬停在光标上时，如何将HTML

输入框中的值显示为
工具提示
？我正在使用
title
属性，但它如何动态显示
输入文本的值

我是HTML新手，我不想使用JS/JQ。谢谢。
演示：

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

CSS:

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

HTML:

<a href="http://example.com" class="top-tip" data-tips="Go to example.com">example.com</a>


演示：

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

CSS:

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

HTML:

<a href="http://example.com" class="top-tip" data-tips="Go to example.com">example.com</a>


演示：

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

CSS:

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

HTML:

<a href="http://example.com" class="top-tip" data-tips="Go to example.com">example.com</a>


演示：

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

CSS:

    [data-tips] {
    position: relative;
    text-decoration: none;
}
    [data-tips]:after,
    [data-tips]:before {
        position: absolute;
        z-index: 100;
        opacity: 0;
    }
        [data-tips]:after {
            content: attr(data-tips);
            height: 25px;
            line-height: 25px;
            padding: 0 10px;
            font-size: 12px;
            text-align: center;
            color: #fff;
            background: #222;
            border-radius: 5px;
            text-shadow: 0 0 5px #000;
            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            white-space: nowrap;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }
        [data-tips]:before {
            content: "";
            width: 0;
            height: 0;
            border-width: 6px;
            border-style: solid;
        }
            [data-tips]:hover:after,
            [data-tips]:hover:before {
                opacity: 1;
            }
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
    bottom: 90%;
    left: -9999px;
    margin-bottom: 12px;
}
    [data-tips].top-tip:before {
        border-color: #222 transparent transparent transparent;
        margin-bottom: 0;
    }
    [data-tips].top-tip:hover:after,
    [data-tips].top-tip:hover:before {
        bottom: 100%;
        left: 0;
    }
    [data-tips].top-tip:hover:before {
        left: 15px;
    }
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: 90%;
    left: -9999px;
    margin-top: 12px;
}
    [data-tips].bottom-tip:before {
        border-color: transparent transparent #222 transparent;
        margin-top: 0;
    }
    [data-tips].bottom-tip:hover:after,
    [data-tips].bottom-tip:hover:before {
        top: 100%;
        left: 0;
    }
    [data-tips].bottom-tip:hover:before {
        left: 15px;
    }
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    left: 96%;
    margin-left: 12px;
}
    [data-tips].left-tip:before {
        border-color: transparent #222 transparent transparent;
        margin-left: 0;
    }
    [data-tips].left-tip:hover:after,
    [data-tips].left-tip:hover:before {
        left: 100%;
        top: 0;
    }
    [data-tips].left-tip:hover:before {
        top: 7px;
    }
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
    top: -9999px;
    right: 96%;
    margin-right: 12px;
}
    [data-tips].right-tip:before {
        border-color: transparent transparent transparent #222;
        margin-right: 0;
    }
    [data-tips].right-tip:hover:after,
    [data-tips].right-tip:hover:before {
        right: 100%;
        top: 0;
    }
    [data-tips].right-tip:hover:before {
        top: 7px;
    }

HTML:

<a href="http://example.com" class="top-tip" data-tips="Go to example.com">example.com</a>


为什么要在工具提示中显示元素本身中存在的内容？如果“动态输入的文本”不是由JavaScript生成的（您不想使用它），那么它是什么意思？任何服务器端生成都应该能够生成
title
属性。遗憾的是，您不想使用Javascript。有了一点原生/香草JS，就可以生成非常直观和轻量级的工具提示代码。适用于IE8（可能更低）和更高版本以及所有其他浏览器。毕竟，如果您对此感兴趣，请告诉我，我将发布代码。@Saik0，请接受回答：）。为什么要在工具提示中显示元素本身中存在的内容？如果“动态输入的文本”不是由JavaScript生成的（您不想使用它），那么它是什么意思？任何服务器端生成都应该能够生成
title
属性。遗憾的是，您不想使用Javascript。有了一点原生/香草JS，就可以生成非常直观和轻量级的工具提示代码。适用于IE8（可能更低）和更高版本以及所有其他浏览器。毕竟，如果您对此感兴趣，请告诉我，我将发布代码。@Saik0，请接受回答：）。为什么要在工具提示中显示元素本身中存在的内容？如果“动态输入的文本”不是由JavaScript生成的（您不想使用它），那么它是什么意思？任何服务器端生成都应该能够生成
title
属性。遗憾的是，您不想使用Javascript。有了一点原生/香草JS，就可以生成非常直观和轻量级的工具提示代码。适用于IE8（可能更低）和更高版本以及所有其他浏览器。毕竟，如果您对此感兴趣，请告诉我，我将发布代码。@Saik0，请接受回答：）。为什么要在工具提示中显示元素本身中存在的内容？如果“动态输入的文本”不是由JavaScript生成的（您不想使用它），那么它是什么意思？任何服务器端生成都应该能够生成
title
属性。遗憾的是，您不想使用Javascript。有了一点原生/香草JS，就可以生成非常直观和轻量级的工具提示代码。适用于IE8（可能更低）和更高版本以及所有其他浏览器。如果您对此感兴趣，请告诉我，我会发布代码。@Saik0，请接受回答：）。这是一个很好且优雅的解决方案！漂亮优雅的解决方案！漂亮优雅的解决方案！漂亮优雅的解决方案！