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