1 <style>
2 .div1{
3 width: 500px;
4 height: 600px;
5 /* padding: 20px 0px 0px 50px; */
6 /* border: 1px solid red; */
7 /* text-align: center; */
8 margin-left: 25%;
9 margin-top: 10%;
10 }
11 .div01{
12 display: inline-block;
13 background-color: black;
14 width: 10px;
15 height: 600px;
16 float: left;
17 }
18 .div02{
19 display: inline-block;
20 width: 0px;
21 height: 0px;
22 border-left:300px solid red;
23 border-top:100px solid transparent;
24 border-right:100px solid transparent;
25 border-bottom:100px solid transparent;
26 float: left;
27 }
28 </style>
29
30 <div class="div1">
31 <div class="div01"></div>
32 <div class="div02"></div>
33 </div>