console 命令行工具 X clear

console

<div class="box">
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
   <div class="box-item">xxx</div>
</div>

.box{
        display:grid;
        grid-template-columns:repeat(3,1fr);
        grid-template-rows:repeat(3,1fr);
        width:300px;height:300px; background:#ccc;
        grid-gap:1px 1px;
        place-items:stretch stretch;
        .box-item{
            background:#f90;
        }
    }