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