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