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