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