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