實現簡單彈出框/遮罩層的效果。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>彈出框</title>
<style>
*{
padding: 0;
margin:0;
}
body{
width: 100%;
height:100%;
background: #fff;
}
.toggleModal{
padding: 10px 20px;
color: white;
background: #409EFF;
border:none;
box-shadow: 2px 3px 20px rgba(0,0,0,0.2);
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}
.mask{
position: absolute;
top: 0;
bottom: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0,0,0,0.4);
z-index: 100;
display: none;
}
.modal{
position: absolute;
top: 50%;
left: 50%;
width: 400px;
transform: translate(-50%,-50%);
border-radius: 5px;
background: #fff;
box-shadow: 2px 3px 20px rgba(0,0,0,0.2);
z-index: 120;
display: none;
}
.modal .modal-header{
height: 50px;
border-bottom: 1px solid #f5f5f5;
padding: 0 15px;
}
.modal .modal-header p {
line-height: 50px;
display: inline-block;
}
.modal .modal-header .title{
font-size: 18px;
color: #333;
}
.modal .modal-header .close{
float: right;
font-size: 26px;
margin-top: -2px;
color: #9C9FA4;
cursor: default;
}
.modal .modal-content{
min-height: 100px;
}
.modal .modal-footer .btn{
padding: 0 20px;
height: 36px;
line-height: 36px;
color: white;
background: #409EFF;
border: none;
}
.modal .modal-footer{
border-top: 1px solid #f5f5f5;
padding: 15px;
text-align: right;
}
.container::after{
content:"";
display: block;
clear: both;
}
</style>
</head>
<body>
<div class="container">
<div>
<button class="toggleModal" id="toggleModal">觸發遮罩層</button>
</div>
<div class="modal">
<div class="modal-header">
<p class="title">這是彈出層的標題</p>
<p class="close">×</p>
</div>
<div class="modal-content">
</div>
<div class="modal-footer">
<button class="close btn">關閉</button>
</div>
</div>
<div class="mask"></div>
</div>
<script>
window.onload = function(){
// 獲取需要使用到的元素
var toggleModal = document.getElementById("toggleModal");
var container = document.getElementsByClassName("container")[0];
var mask = document.getElementsByClassName("mask")[0];
var modal = document.getElementsByClassName("modal")[0];
var closes = document.getElementsByClassName("close");
toggleModal.onclick = show;
closes[0].onclick = close;
closes[1].onclick = close;
function show(){
mask.style.display = "block";
modal.style.display = "block";
}
function close(){
mask.style.display = "none";
modal.style.display = "none";
}
}
</script>
</body>
</html>
