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