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