CSS文本悬停在div

时间:2017-01-04 20:21:11

标签: html css css3 underline

我正在尝试为我的网页上的单词添加下划线。它有效,但下划线显示文本在里面的div。你可以在代码片段上看到div应该填满整个显示,但现在你必须向下滚动才能看到下划线。如何在文本下面显示它?

body {
  margin: 0;
  padding: 0;
}
div {
  width: 50%;
  height: 100vh;
  text-align: center;
  line-height: 100vh;
  font-size: 150%;
  top: 0;
  -webkit-transition: font-size 0.5s;
  -moz-transition: font-size 0.5s;
  -o-transition: font-size 0.5s;
  transition: font-size 0.5s;
}
div:hover {
  font-size: 200%;
}
a {
  display: inline-block;
  position: relative;
  padding-bottom: 3px;
}
a:after {
  content: '';
  display: block;
  margin: auto;
  height: 3px;
  width: 0px;
  background: transparent;
  transition: width .5s ease, background-color .5s ease;
}
a:hover:after {
  width: 100%;
  background: blue;
}
<div style="background-color: rgb(64, 64, 64); color: rgb(255, 255, 255); float: left;">
  <a>Webpage</a>
</div>
<div style="background-color: rgb(255, 255, 255); color: rgb(64, 64, 64); float: right;">
  <a>Photos</a>
</div>

3 个答案:

答案 0 :(得分:3)

锚点的行高在父项中修改。

将其恢复为默认

body {
  margin: 0;
  padding: 0;
}
div {
  width: 50%;
  height: 100vh;
  text-align: center;
  line-height: 100vh;  /* this value is inherited by the a */
  font-size: 150%;
  top: 0;
  -webkit-transition: font-size 0.5s;
  -moz-transition: font-size 0.5s;
  -o-transition: font-size 0.5s;
  transition: font-size 0.5s;
}
div:hover {
  font-size: 200%;
}
a {
  display: inline-block;
  position: relative;
  padding-bottom: 3px;
  line-height: initial;  /* added */
}
a:after {
  content: '';
  display: block;
  margin: auto;
  height: 3px;
  width: 0px;
  background: transparent;
  transition: width .5s ease, background-color .5s ease;
}
a:hover:after {
  width: 100%;
  background: blue;
}
<div style="background-color: rgb(64, 64, 64); color: rgb(255, 255, 255); float: left;">
  <a>Webpage</a>
</div>
<div style="background-color: rgb(255, 255, 255); color: rgb(64, 64, 64); float: right;">
  <a>Photos</a>
</div>

答案 1 :(得分:1)

我不会使用括号,而是将div放入其中。

<div style="background-color: rgb(255, 255, 255); color: rgb(64, 64, 64); float: right;"><div id="hoverDiv">Photos</div></div>

然后在CSS中,您只需在悬停时以蓝色显示div的下边框。

抱歉,我没有时间做所有的代码,但它是初稿......希望它可以给你一个好主意!

答案 2 :(得分:1)

你可以使用flex和background-size:

&#13;
&#13;
body {
  margin: 0;
  height: 100vh;
  display: flex;
}
div {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
a {
  padding-bottom: 3px;
  background: linear-gradient(to left, currentcolor, currentcolor) bottom center no-repeat;
  transition: 0.5s;
  background-size: 0 3px;
}
a:hover {
  background-size: 100% 3px;
}
&#13;
<div style="background-color: rgb(64, 64, 64); color: rgb(255, 255, 255); "><a>Webpage</a>
</div>
<div style="background-color: rgb(255, 255, 255); color: rgb(64, 64, 64); "><a>Photos</a>
</div>
&#13;
&#13;
&#13;

您也可以使用display:table

&#13;
&#13;
html {
  margin: 0;
  height: 100%;
  width: 100%;
}
html {
  display: table;
  table-layout: fixed;
}
body {
  display: table-row;
}
div {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}
a {
  padding-bottom: 3px;
  background: linear-gradient(to left, currentcolor, currentcolor) bottom center no-repeat;
  transition: 0.5s;
  background-size: 0 3px;
}
a:hover {
  background-size: 100% 3px;
}
&#13;
<div style="background-color: rgb(64, 64, 64); color: rgb(255, 255, 255); "><a>Webpage</a>
</div>
<div style="background-color: rgb(255, 255, 255); color: rgb(64, 64, 64); "><a>Photos</a>
</div>
&#13;
&#13;
&#13;

如果您将:after转换为<a>元素

,这两个示例都可以使用伪inline-block