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