我使用Twitter Bootstrap 3，当我想垂直对齐两个div时，我有问题，例如- JSFiddle链接:
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap-theme.min.css">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<div class="row">
<div class="col-xs-5">
<div style="height:5em;border:1px solid #000">Big</div>
</div>
<div class="col-xs-5">
<div style="height:3em;border:1px solid #F00">Small</div>
</div>
</div>
Bootstrap中的网格系统使用float: left，而不是display:inline-block，因此属性vertical-align不起作用。我尝试使用margin-top来修复它，但我认为这不是响应式设计的一个很好的解决方案。
我详细阐述了zessx的答案，以便在不同屏幕尺寸上混合不同的列大小时更容易使用。
如果你使用Sass，你可以把这个添加到你的scss文件中:
@mixin v-col($prefix, $min-width) {
@media (min-width: $min-width) {
.col-#{$prefix}-v {
display: inline-block;
vertical-align: middle;
float: none;
}
}
}
@include v-col(lg, $screen-lg);
@include v-col(md, $screen-md);
@include v-col(sm, $screen-sm);
@include v-col(xs, $screen-xs);
它生成以下CSS(如果你不使用Sass，你可以直接在你的样式表中使用):
@media (min-width: 1200px) {
.col-lg-v {
display: inline-block;
vertical-align: middle;
float: none;
}
}
@media (min-width: 992px) {
.col-md-v {
display: inline-block;
vertical-align: middle;
float: none;
}
}
@media (min-width: 768px) {
.col-sm-v {
display: inline-block;
vertical-align: middle;
float: none;
}
}
@media (min-width: 480px) {
.col-xs-v {
display: inline-block;
vertical-align: middle;
float: none;
}
}
现在你可以像这样在你的响应列上使用它:
<div class="container">
<div class="row">
<div class="col-sm-7 col-sm-v col-xs-12">
<p>
This content is vertically aligned on tablets and larger. On mobile it will expand to screen width.
</p>
</div><div class="col-sm-5 col-sm-v col-xs-12">
<p>
This content is vertically aligned on tablets and larger. On mobile it will expand to screen width.
</p>
</div>
</div>
<div class="row">
<div class="col-md-7 col-md-v col-sm-12">
<p>
This content is vertically aligned on desktops and larger. On tablets and smaller it will expand to screen width.
</p>
</div><div class="col-md-5 col-md-v col-sm-12">
<p>
This content is vertically aligned on desktops and larger. On tablets and smaller it will expand to screen width.
</p>
</div>
</div>
</div>
