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