console 命令行工具 X clear

console

<div class="hhh"></div>

.hhh{
    width: 180px;
    height: 18px;
    border-top: 5px solid;
    border-left: 5px solid;
    /* transform: rotate(-45deg); */
    border-color: #FFFFFF;
    margin-left: 40px;
    margin-right: 20px;
    background-color: red;
}