半透明边框background-clip:指定背景的绘图区域.div{width:200px;高度:200px;背景:蓝色;border:10pxsolidrgba(255,170,170,0.3);background-clip:padding-box;}效果如图parallelogram//方法一parallelogram

半透明边框background-clip:指定背景的绘图区域.div{width:200px;高度:200px;背景:蓝色;border:10pxsolidrgba(255,170,170,0.3);background-clip:padding-box;}效果如图parallelogram//方法一parallelogram