如何使用CSS和JavaScript创建弹出窗口？
要使用CSS和JavaScript创建弹出窗口，代码如下-
示例
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style>
body {
font-family: Arial, Helvetica, sans-serif;
}
.popUp {
text-align: center;
display: none;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.4);
}
.popupContent {
font-size: 20px;
font-weight: bold;
background-color: #fefefe;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
.close {
color: rgb(255, 65, 65);
float: right;
font-size: 40px;
font-weight: bold;
}
.close:hover, .close:focus {
color: #ff1010;
cursor: pointer;
}
</style>
</head>
<body>
<h1>Popup Example</h1>
<button class="openPopUp">Open Popup</button>
<h2>Click on the above button to open popup</h2>
<div class="popUp">
<div class="popupContent">
<span class="close">×</span>
<p>Sample text inside popup</p>
</div>
</div>
<script>
var popUp = document.querySelector(".popUp");
var btn = document.querySelector(".openPopUp");
var span = document.querySelector(".close");
btn.addEventListener("click", () => {
popUp.style.display = "block";
});
span.addEventListener("click", () => {
popUp.style.display = "none";
});
window.onclick = function(event) {
if (event.target == popUp) {
popUp.style.display = "none";
}
};
</script>
</body>
</html>输出结果
上面的代码将产生以下输出-
单击“打开弹出窗口”按钮后，将显示以下弹出窗口-