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