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