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