少废话 先上图
省略号2.gif
少废话 直接上代码了
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
font-size: 16px;
}
.content {
width: 100%;
position: relative;
overflow: hidden;
padding: 10px;
box-sizing: border-box;
}
.text {
text-overflow: ellipsis;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-box-pack: center;
-webkit-box-align: center;
-webkit-line-clamp: 2;
overflow: hidden;
}
.show—all1 label ,.show—all2 label{
color: red;
border: 1px solid red;
border-radius: 2px;
font-size: 12px;
}
.show—all2 {
display: none;
position: absolute;
bottom: 10px;
right: 10px;
background-color: #fff;
line-height: 20px;
z-index: 100;
}
</style>
</head>
<body>
<div class="content">
<div class="text">
发鬼地方个覆盖电饭锅电饭锅豆腐干豆腐电饭锅豆腐干豆腐豆腐干豆腐换地方大范甘迪发鬼地方个的发给对方
<span class="show—all1"><label onclick="showAll()">全文</label></span>
</div>
<span class="show—all2">... <label onclick="showAll()">全文</label></span>
</div>
</body>
</html>
<script>
// 根绝内容宽度来显示 标签
window.onresize = function () {
var content = document.getElementsByClassName("content")[0]
var textview = document.getElementsByClassName("text")[0]
var showAll1 = document.getElementsByClassName("show—all1")[0]
var showAll2 = document.getElementsByClassName("show—all2")[0]
var scrollHeight = textview.scrollHeight
var height = content.clientHeight
if (scrollHeight > height) {
console.log('被省略了')
showAll1.style.display = 'none';
showAll2.style.display = 'block';
}else{
console.log('完全显示')
showAll1.style.display = 'inline-block';
showAll2.style.display = 'none';
}
}
function showAll() {
alert("显示全文")
}
</script>
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