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