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