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