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margin.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Margin Values Example</title>
<style>
.box {
width: 200px;
height: 100px;
background-color: #f0f0f0;
border: 2px solid #333;
margin-bottom: 10px; /* 设置每个.box的下边距离为10px */
}
.length-value {
margin-left: 20px; /* 使用长度值20px */
}
.negative-value {
margin-left: -20px; /* 使用负值-20px */
}
.auto-value {
width: 1080px; /* 设置宽度为1080px */
height: 522px; /* 设置高度为522px */
margin-top: 10px;
margin-right: auto; /* 左右使用auto值，可以使元素水平居中 */
margin-left: auto; /* 使用auto值 */
}
.parent {
margin-left: 20px; /* 设置父元素的左外边距为 20px */
background-color: #f0f0f0;
}
.child {
width: 200px;
height: 100px;
background-color: #ffcc00;
margin-left: inherit; /* 继承父元素的左外边距 */
}
.container {
height: 50px;
overflow: hidden;
background-color: #f0f0f0;
}
.left {
float: left;
width: 200px;
margin-left: -100%;
background-color: #ffcc20;
}
.right {
float: left;
background-color: #ff2c00;
}
#div1 {
width: 50%; /* 或任意你需要的宽度 */
height: 200px;
background-color: #6693FF;
margin: auto;
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
}
.container {
width: 100%;
height: 100vh; /* 或者使用 height: 100% */
}
.top, .middle, .bottom {
width: 50%;
height: 50vh; /* 或者使用 height: 50% */
float: left; /* 或者使用 display: inline-block; */
}
.top {
background-color: red; /* 设置上方区域的背景色 */
}
.middle {
background-color: white; /* 设置中间区域的背景色 */
}
.bottom {
background-color: blue; /* 设置下方区域的背景色 */
}
</style>
</head>
<body>
<div class="box length-value">Margin with Length Value (20px)</div>
<div class="box negative-value">Margin with Negative Value (-10px)</div>
<div class="box auto-value"><img src="./img/tree.png" alt="" /></div>
<div class="parent">
<div class="child">我与父级也有距离</div>
</div>
<div class="container">
<div class="left">我rr</div>
<div class="right">我与父级也有距离</div>
</div>
<div id="div1">距离</div>
<div class="container2">
<div class="top"></div>
<div class="middle"></div>
<div class="bottom"></div>
</div>
</body>
</html>