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