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