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