console 命令行工具 X clear

console

<div class="red">红色</div>
<div class="green">绿色</div>
<div class="red">红色</div>

.red {
    width: 100px;
    height: 100px;
    background-color: red;
}
.green{
    width: 100px;
    height: 100px;
    background-color: green;
}