黃沙百戰穿金甲，不破樓蘭終不還。
阿新 • • 發佈：2018-12-23
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.main {
margin: 100px auto;
height: 173px;
width: 100%;
background border: 1px solid red;/註釋掉這一行看看/
解決方法1
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.main {
margin: 100px auto;
height: 173px;
width: 100%;
background: url(bottom_bg_img.png) top center no-repeat;
}
.mains {
width: 1200px;
height: 173px;
margin: 0 auto;
border: 1px solid red;
text-align: center;
}
.mains img {
position: absolute;
margin-top: -100px;
transform:translateX(-50%) ;
}
</style>
</head>
<body>
<div class="main">
<div class="mains">
<img src="rocket_icon.png" />
</div>
</div>
</body>
</html>解決方法2
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.main {
margin:0px auto;
height: 273px;
width: 100%;
background: url(bottom_bg_img.png) bottom center no-repeat;
}
.mains {
width: 1200px;
height: 273px;
margin: 0 auto;
border: 1px solid red;
}
.mains img {
display: block;
margin: 0 auto;
}
</style>
</head>
<body>
<div class="main">
<div class="mains">
<img src="rocket_icon.png" />
</div>
</div>
</body>
</html>