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