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