關於 js 實現一個簡單的蒙板功能(model)
思路:
- 創建一個蒙板, 設置蒙板的堆疊順序保證能將其它元素蓋住
position: absolute;
top: 0;
left: 0;
display: none;
background-color: rgba(9, 9, 9, 0.63);
width: 100%;
height: 100%;
z-index: 1000;
- 設置蒙板中內容的背景色和展示格式
width: 50%;
text-align: center;
background: #ffffff;
border-radius: 6px;
margin: 100px auto;
line-height: 30px;
z-index: 10001;
- 綁定事件, 動態切換蒙板的
display屬性
function showModel() {
document.getElementById('myModel').style.display = 'block';
}
function closeModel() {
document.getElementById('myModel').style.display = 'none';
}
注意事項: 蒙板要采用絕對定位, 寬和高要占満整個頁面, 堆疊順序要大
源代碼
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>蒙板</title>
<style>
.container {
width: 900px;
margin: 50px auto;
text-align: center;
}
#myModel {
position: absolute;
top: 0;
left: 0;
display: none;
background-color: rgba(9, 9, 9, 0.63);
width: 100%;
height: 100%;
z-index: 1000;
}
.model-content {
width: 50%;
text-align: center;
background: #ffffff;
border-radius: 6px;
margin: 100px auto;
line-height: 30px;
z-index: 10001;
}
</style>
</head>
<body>
<div class="container">
<button onclick="showModel()">彈出蒙板</button>
<div id="myModel" onclick="closeModel()">
<div class="model-content">
<p>你好啊,我是內容~~</p>
<p>
<button id="closeModel" onclick="closeModel()">關閉</button>
</p>
</div>
</div>
</div>
<script>
function showModel() {
document.getElementById('myModel').style.display = 'block';
}
function closeModel() {
document.getElementById('myModel').style.display = 'none';
}
</script>
</body>
</html>