html - div包含的h3不能垂直居中

Question

我的 h3 没有垂直居中有问题。在 Firebug 中，如果我将 top:50% 更改为 top:51% 然后再更改回来，它会自行修复。

div中的H3需要垂直居中。

链接:here

CSS:

.review-large {
    text-align: center;
    clear: both;
    margin-top: 20px;
    margin-bottom: 50px;
    position: relative;
    width: 100%;
    min-height:127px;
    background-image: url(../images/review-images/quote-left.jpg), url(../images/review-images/quote-right.jpg);
    background-position: left center, right center;
    background-repeat: no-repeat;
    text-align:center;
}

.review-large h3 {
    color: #00adee;
    font-size: 33px;
    font-weight: bold;
    line-height: 33px;
    padding:0 60px;
    position: relative;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    margin:0;
}

Answer 1

您应该使用表格/表格单元格行为。将容器放在 display:table;和表格单元格中的 h3；并设置垂直对齐:中间。同时删除位置变换和顶部，如:

.review-large {
    display: table;
    text-align: center;
    clear: both;
    margin-top: 20px;
    margin-bottom: 50px;
    position: relative;
    width: 100%;
    min-height:127px;
    background-image: url(../images/review-images/quote-left.jpg), url(../images/review-images/quote-right.jpg);
    background-position: left center, right center;
    background-repeat: no-repeat;
    text-align:center;
}

.review-large h3 {
    display: table-cell;
    vertical-align: middle;
    color: #00adee;
    font-size: 33px;
    font-weight: bold;
    line-height: 33px;
    padding:0 60px;
    position: relative;
    margin:0;
}