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