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