1 <main>
2
3 <div>
4 I'm a block-level element with a fixed height,centered vertically within my parent.
5 </div>
6
7 </main>
8
9
10 body {
11 background: #f06d06;
12 font-size: 80%;
13 }
14
15 main {
16 white;
17 height: 300px;
18 margin: 20px;
19 width:20 position: relative;
21 resize: vertical;
22 overflow: auto;
23 }
24
25 main div {
26 absolute;
27 top: 50%;
28 left:29 right:30 100px;
31 margin-top: -70px;
32 black;
33 color:34 padding:35 }
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