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