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