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