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