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