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