弹窗
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>弹窗</title>
<style type="text/css">
.alert {
display: none;
justify-content: center;
align-items: center;
width: 100%;
height: 100vh;
background: rgba(0, 0, 0, 0.4);
position: fixed;
top: 0;
left: 0;
}
.alert-body {
width: 450px;
background-color: white;
border-radius: 10px;
font-size: 30px;
color: #000;
text-align: center;
animation: moveFromTop 0.3s linear;
}
.alert-title {
line-height: 80px;
border-bottom: 2px solid #eee;
font-size: 30px;
position: relative;
}
.close {
position: absolute;
top: 22px;
right: 30px;
width: 40px;
height: 40px;
line-height: 40px;
cursor: pointer;
color: grey;
}
.close:hover {
color: black;
}
.alert-content {
display: flex;
justify-content: center;
align-items: center;
height: 150px;
color: #999;
}
@keyframes moveFromTop {
from {
margin-top: -600px;
}
to {
margin-top: 0;
}
}
</style>
</head>
<body>
<button id="btn">显示弹窗</button>
<div class="alert">
<div class="alert-body">
<div class="alert-title">标题<div class="close">x</div>
</div>
<div class="alert-content">hello world</div>
</div>
</div>
<script type="text/javascript">
let btn = document.getElementById("btn");
let alert = document.querySelector(".alert");
let close = document.querySelector(".close");
btn.onclick = function() {
alert.style.display = "flex";
};
close.onclick = function() {
alert.style.display = "none";
};
alert.onclick = function(e) {
if (e.target == alert) {
alert.style.display = "none";
}
};
</script>
</body>
</html>
转载：https://blog.csdn.net/qq_14876133/article/details/128735381
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