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