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