html+css實戰156-案例-banner <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.banner {
position: relative;
margin: 0 auto;
width: 1226px;
height: 600px;
}
.mask {
position: absolute;
left: 0;
bottom: 0;
/* 絕對定位的盒子顯示模式具備行内塊特點: 加寬度高度生效, 如果沒有寬度也沒有内容, 盒子的寬度尺寸就是0 */
/* width: 1226px; */
/* 如果子級和父級的寬度相同 */
width: 100%;
height: 150px;
background-color: rgba(0,0,0, .5);
}
</style>
</head>
<body>
<div class="banner">
<img src="./images/bg.jpg" alt="">
<!-- 遮罩 -->
<div class="mask">111</div>
</div>
</body>
</html>
運作結果
![Spring MVC 自學雜記（五） -- SpringMVC與前台的json資料互動[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)