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