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