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