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