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