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