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