Element block pseudo-element :after generated with margin 0px transition height auto transform background padding 20px width 100% cursor default position static border-radius float none box-sizing content-box line-height 1 font-size 16px box-shadow 1px 1px 1px rgba(0,0,0,0.3) text-shadow 1px 1px 1px rgba(0,0,0,0.2) z-index auto overflow hidden font-weight normal display block border 0px rgba(0,0,0,1) solid