原生JS结合CSS还有HTML实现页面弹框（代码教程）
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2023-10-29 14:37:22
原生js结合css还有html实现页面弹框（代码教程）
原生js结合css还有html实现页面弹框（代码教程）
<!doctype html>
<html>
<head>
<meta charset=""/>
<title>opacity</title>
<style>
*{
padding: 0;
margin: 0;
}
body{
padding: 0px;
background: url() 0 0 no-repeat;
background-size: cover;
}
.demo{
width: 100%;
height: 100%;
position: relative;
}
.demo-bg{
position: absolute;
left: 0;
top: 0;
z-index: 0;
width: 100%;
height: 671px;
/*filter:alpha(opacity=50);*/
background-color: rgba(0,0,0,0.4); /*实现透明背景*/
display: none;
}
#button{
width: 70px;
height: 30px;
border-radius: 5px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
background: yellow;
margin: 20px 0 0 40px;
position: relative;
border: 0;
box-shadow: 2px 2px 10px red;
-webkit-box-shadow: 2px 2px 10px red;
-moz-box-shadow: 2px 2px 10px red;
}
.demo-txt{
position: relative;
z-index: 1;
color: #000;
background: white;
width: 30%;
height: 200px;
margin:auto;
padding: auto;
left: 0;
right: 0;
bottom: 0;
top: 0;
display: none;
padding: 10px;
border-radius: 5px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
}
#btn{
float: right;
}
</style>
</head>
<body>
<p class='demo'>
<button id="button" onclick="opendialog()">打开弹窗</button>
<p class='demo-bg'></p>
<p class='demo-txt'>
<button id="btn" onclick="closedialog()">关闭弹窗</button>
</p>
</p>
<script>
var demobg = document.queryselector(".demo-bg");
var demotxt = document.queryselector(".demo-txt");
function opendialog() {
demotxt.style.display = "block";
demobg.style.display = "block";
}
function closedialog() {
demotxt.style.display = "none";
demobg.style.display = "none";
}
</script>
</body>
</html>