html - 绝对居中在 IE 中不起作用

Question

我有一个以父 div 为中心的 div，它可以在所有浏览器上工作，但不能在 ie 中工作，你能帮我解决这个问题吗。

JSFIDDLE

span.qbg3 {
    display: block;
    text-align: center;
    background: url(http://powerblanket.com/may2014/wp-content/uploads/2014/05/qbg3.png) no-repeat center center;
    background-size:cover;
    padding: 50px 20px;
    color: #fff;
    font-weight: 400;
    font-size: 30px;
    position: relative;
    margin-top: -20px;
    min-height: 350px;
}
span.inqbg3 {
    max-height: 100px;
    display: block;
    text-align: center;
    color: #fff;
    font-weight: 400;
    font-size: 40px;
    position: absolute;
    margin: auto;
    top: 0px;
    right: 0;
    left: 0;
    bottom: 0px;
    background: rgba(0, 0, 0, 0.5);
    max-width: 700px;
    padding: 35px 0;
}
span.inqbg3 a {
    color: #fff;
}

Answer 1

Demo

您需要将 span.inqbg3 的 width 设置为

width: 100%/* 设置你自己的高度:percents, ems, whatever! */

CSS

span.inqbg3 {
    height: 100%; /* Set your own height: percents, ems, whatever! */
    max-height: 100px;
    display: block;
    text-align: center;
    color: #fff;
    font-weight: 400;
    font-size: 40px;
    position: absolute;
    margin: auto;
    top: 0px;
    right: 0;
    left: 0;
    bottom: 0px;
    background: rgba(0, 0, 0, 0.5);
    width: 100%; /* Set your own width: percents, ems, whatever! */
    max-width: 700px;
    padding: 35px 0;
}