如何在伪元素之前将文本居中: [英] How to center text inside :before pseudo element?
本文介绍了如何在伪元素之前将文本居中:的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有这样的代码:
span {
border-radius: 50%;
background-color: #d8d9dd;
border: 6px solid #262c40;
width: 25px;
height: 25px;
margin: 30px 0 0 40px;
display: block;
}
span:before {
content: attr(data-value);
position: relative;
white-space: pre;
display: inline;
top: -27px;
left: -29px;
width: 200px;
text-align: center;
}
<span data-value="November 2016"></span>
<span data-value="May 2016"></span>
如何在伪元素之前将文本居中于居中位置:居中?有可能吗?
How can I center the text inside :before pseudo element to be in the middle of the span? Is it possible?
推荐答案
最好的方法是将伪代码之前的
放置在
使用流行的居中技术针对之前
span
:
The best thing would be to position the before
pseudo element absolutely with respect to the span
using the popular centering technique:
top: 0;
left: 50%;
transform: translate(-50%, -25px);
请注意,-25px用于使圆圈上方的文本偏移(高度为25px)-请参见下面的演示
Note that -25px is to offset the text above the circles (which has height 25px) - see demo below:
span {
border-radius: 50%;
background-color: #d8d9dd;
border: 6px solid #262c40;
width: 25px;
height: 25px;
margin: 30px 0 0 40px;
display: block;
position:relative;
}
span:before {
content: attr(data-value);
position: absolute;
white-space: pre;
display: inline;
top: 0;
left: 50%;
transform: translate(-50%, -25px);
}
<span data-value="November 2016"></span>
<span data-value="May 2016"></span>
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