代码如下:
.box{
border:1px solid #ccc;
font-size:12px;
background:#f1f1f1;
padding:10px;
}
代码如下:
this is a gray box
代码如下:
.box-gray,
.box-green{
border:1px solid #ccc;
font-size:12px;
padding:10px;
}
.box-gray{background:#f1f1f1}
.box-green{background:#66ff66}
代码如下:
this is a gray box
this is a green box
代码如下:
.fs-12{font-size:12px}
.fs-14{font-size:14px}
.pd-10{padding:10px}
.pd-20{padding:20px}
.box{
border:1px solid #ccc;
}
.box.gray{background:#f1f1f1}
.box.green{background:#66ff66}
代码如下:
this a gray fontsize12px padding20px box
this a gray fontsize14px padding10px box