Element block pseudo-element :before generated with overflow hidden transition padding 20px border 0px rgba(0,0,0,1) solid font-size 16px background cursor default display block margin 0px position static z-index auto width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius box-sizing content-box float left height auto font-weight normal transform