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