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