Element block pseudo-element :after generated with background width 160px border 0px rgba(0,0,0,1) solid overflow hidden box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) line-height 1 box-shadow 1px 1px 1px rgba(0,0,0,0.3) float none border-radius cursor default margin 0px z-index auto padding 20px position static display block height auto transition font-size 16px transform font-weight normal