note/example/margin-collapse.html at master · Packedcat/note · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>margin collapse</title>
	<style>
		* {
			margin: 0;
			padding: 0;
			font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;
		}
		div {
			margin: 20px;
		}
		h3 {
			color: #66ccff;
		}
		.tall {
			width: 100px;
			height: 100px;
			background-color: #4c98be;
		}
		.short {
			width: 50px;
			height: 50px;
			background-color: #66ccff;
		}
		.border {
			border: 1px solid #33667f;
		}
		.padding {
			padding-top: 5px;
		}
	</style>
</head>
<body>
	<h3>Sibling Elements</h3>
	<div class="tall"></div>
	<div class="tall"></div>
	<h3>Child Elements</h3>
	<div class="tall">
		<div class="short"></div>
	</div>
	<h3>Use border</h3>
	<div class="tall border">
		<div class="short"></div>
	</div>
	<h3>Use padding</h3>
	<div class="tall padding">
		<div class="short"></div>
	</div>
	<h3>Without height/padding/border</h3>
	<div style="min-height: 0"></div>
</body>
</html>