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