CSS/JQuery/Javascript加载图标仅在firefox中有效
我有一个非常简单的加载图标,div是全屏的,图像只是一个gif:CSS/JQuery/Javascript加载图标仅在firefox中有效,javascript,jquery,css,Javascript,Jquery,Css,我有一个非常简单的加载图标,div是全屏的,图像只是一个gif: <div id="loading" class="a"> <img id="loading-gif" src="img/general/712.gif" width="50px" height="50px" class="b" /> </div> 当我想显示它时,我是这样做的: var hCenter = (Math.floor(window.innerWidth/2)) - 25; va
<div id="loading" class="a">
<img id="loading-gif" src="img/general/712.gif" width="50px" height="50px" class="b" />
</div>
当我想显示它时,我是这样做的:
var hCenter = (Math.floor(window.innerWidth/2)) - 25;
var vTop = window.pageYOffset || document.documentElement.scrollTop;
var vCenter = (Math.floor(window.innerHeight/2)) - 25;
$("#loading-gif").css({top: vTop + vCenter, left: hCenter});
$("#loading").show();
.hidden {
display:none;
}
并隐藏:
$("#loading").hide();
这在firefox中运行良好,但在Chrome或iPhone中似乎不起作用。我在任何地方都看不到错误-知道为什么有些浏览器不喜欢它吗
谢谢您应该这样做:
var hCenter = (Math.floor(window.innerWidth/2)) - 25;
var vTop = window.pageYOffset || document.documentElement.scrollTop;
var vCenter = (Math.floor(window.innerHeight/2)) - 25;
$("#loading-gif").css({top: vTop + vCenter, left: hCenter});
$("#loading").show();
.hidden {
display:none;
}
然后可以添加和删除类以显示和隐藏它
要隐藏:
$("#loading").addClass("hidden");
显示:
$("#loading").removeClass("hidden");
试试这个
JavaScript
CSS
HTML
加载。。。
这是正文
.show()
不会隐藏它!我想知道这个代码是否隐藏了它<代码>$(“#加载”).show()代码>$(“#加载”).hide()代码>是一个隐藏你忘记提到的单位+'px'
=>$(“#加载gif”).css({顶部:(vTop+vCenter)+'px',左侧:hCenter++'px'})代码>$(“#加载”).toggle();
/* cover complete screen */
#preloader {
position: fixed;
top:0;
left:0;
right:0;
bottom:0;
width:100%;
height:100%;
background-color:#FFF;
z-index:9999; /* makes sure it stays on top */
-webkit-transition:none;
transition:none;}
/* preloader container at the middle */
#status {
width:200px;
height:200px;
position:absolute;
left:50%; /* centers the loading animation horizontally one the screen */
top:50%; /* centers the loading animation vertically one the screen */
background-repeat:no-repeat;
background-position:center;
margin:-100px 0 0 -100px; /* is width and height divided by two */
text-align:center;
}
<body>
<div id="preloader">
<div id="status">
<h4>Loading...</h4> <!-- include your loading img here -->
</div>
</div>
<h3>This is a body text</h3>
</body>