Html 为什么内联块元素没有水平对齐？

我试图让所有这些链接在一个5列的网格中使用内联块完美地对齐。然而，它似乎有一个非常小的-也许1px-之间的顶部行和下面的行，我想知道是否有人可以告诉我为什么会发生这种情况。下面是一个包含以下代码的示例

HTML:

---

您的元素没有相同的边界规则。您的顶行使用

右边框

，而您的底行使用

上边框

和

左边框

。因为您还有

box size:border box

，这意味着结果将偏移1

---

使用一致的边框可获得一致的结果。

不要为char input btns类提供左边框，而要使用右边框。更新以下类

.char-input-btns{
width:20%;
border-right: 1px solid grey;
border-top: 1px solid grey;
color: #424242;
background:yellow;
 }

---

如果您只有文本数据，那么为什么不使用

表格

呢？谢谢。我知道这是件愚蠢的事。

/*
    HTML5 Reset :: style.css
    ----------------------------------------------------------
    We have learned much from/been inspired by/taken code where offered from:

    Eric Meyer                  :: http://meyerweb.com
    HTML5 Doctor                :: http://html5doctor.com
    and the HTML5 Boilerplate   :: http://html5boilerplate.com

-------------------------------------------------------------------------------*/

/* Let's default this puppy out
-------------------------------------------------------------------------------*/

html, body, body div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, i, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, figure, footer, header, menu, nav, section, time, mark, audio, video, details, summary {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    vertical-align: baseline;
    background: transparent;
}                                   

/* consider resetting the default cursor: https://gist.github.com/murtaugh/5247154 */

article, aside, figure, footer, header, nav, section, details, summary {display: block;}

/* Responsive images and other embedded objects
   Note: keeping IMG here will cause problems if you're using foreground images as sprites.
   If this default setting for images is causing issues, you might want to replace it with a .responsive class instead. */
img,
object,
embed {max-width: 100%;}

/* force a vertical scrollbar to prevent a jumpy page */
html {overflow-y: scroll;}

/* we use a lot of ULs that aren't bulleted. 
    don't forget to restore the bullets within content. */
ul {list-style: none;}

blockquote, q {quotes: none;}

blockquote:before, 
blockquote:after, 
q:before, 
q:after {content: ''; content: none;}

a {margin: 0; padding: 0; font-size: 100%; vertical-align: baseline; background: transparent;}

del {text-decoration: line-through;}

abbr[title], dfn[title] {border-bottom: 1px dotted #000; cursor: help;}

/* tables still need cellspacing="0" in the markup */
table {border-collapse: collapse; border-spacing: 0;}
th {font-weight: bold; vertical-align: bottom;}
td {font-weight: normal; vertical-align: top;}

hr {display: block; height: 1px; border: 0; border-top: 1px solid #ccc; margin: 1em 0; padding: 0;}

input, select {vertical-align: middle;}

pre {
    white-space: pre; /* CSS2 */
    white-space: pre-wrap; /* CSS 2.1 */
    white-space: pre-line; /* CSS 3 (and 2.1 as well, actually) */
    word-wrap: break-word; /* IE */
}

input[type="radio"] {vertical-align: text-bottom;}
input[type="checkbox"] {vertical-align: bottom;}
.ie7 input[type="checkbox"] {vertical-align: baseline;}
.ie6 input {vertical-align: text-bottom;}

select, input, textarea {font: 99% sans-serif;}

table {font-size: inherit; font: 100%;}

small {font-size: 85%;}

strong {font-weight: bold;}

td, td img {vertical-align: top;} 

/* Make sure sup and sub don't screw with your line-heights
    gist.github.com/413930 */
sub, sup {font-size: 75%; line-height: 0; position: relative;}
sup {top: -0.5em;}
sub {bottom: -0.25em;}

/* standardize any monospaced elements */
pre, code, kbd, samp {font-family: monospace, sans-serif;}

/* hand cursor on clickable elements */
.clickable,
label, 
input[type=button], 
input[type=submit], 
input[type=file], 
button {cursor: pointer;}

/* Webkit browsers add a 2px margin outside the chrome of form elements */
button, input, select, textarea {margin: 0;}

/* make buttons play nice in IE */
button,
input[type=button] {width: auto; overflow: visible;}

/* scale images in IE7 more attractively */
.ie7 img {-ms-interpolation-mode: bicubic;}

/* prevent BG image flicker upon hover 
   (commented out as usage is rare, and the filter syntax messes with some pre-processors)
.ie6 html {filter: expression(document.execCommand("BackgroundImageCache", false, true));}
*/

/* let's clear some floats */
.clearfix:before, .clearfix:after { content: "\0020"; display: block; height: 0; overflow: hidden; }  
.clearfix:after { clear: both; }  
.clearfix { zoom: 1; }  


*, *:before, *:after {
  -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box;
 }

.app-wrp{
    border:1px solid grey;
    width:50%;
    border:1px solid grey;
    margin:1em auto;
}

.app-header{
    width:100%;
    padding:1em;
    border-bottom:1px solid grey;
    background: #ccc;
}

.app-body{

}

#word{
    text-align:center;
    width:100%;
    padding:3em 0;
    border-bottom:1px solid grey;
}

#word > p{
    font-size:3em;
    line-height:1.3em;
}



.char-input-btns-wrp, .app-control-btns-wrp{
    width:100%;
}

.app-control-btns-wrp{
    border-bottom:1px solid grey;
}

.char-input-btns, .app-control-btns{
    text-align:center;
    display:inline-block;
    text-decoration:none;
    font-size:2em;
    margin-right:-4px;
}

.app-control-btns{
    border-right:1px solid grey;    
    width:20%;
}

.app-control-btns:last-child{
    border-right:none;      
    width:40%;
}

.char-input-btns{
    width:20%;

    border-left: 1px solid grey;
    border-top: 1px solid grey;
    color: #424242;
    background:yellow;
}

.char-input-btns:active{
    background:#3399bb;
    color:#fff;
}

.char-input-btns:last-child{
    border-right: 0;
}

.char-input-btns:first-child{
    border-left: 0;
}

.rows{
    width:100%;
    background:pink;
}

.char-input-btns{
width:20%;
border-right: 1px solid grey;
border-top: 1px solid grey;
color: #424242;
background:yellow;
 }