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