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