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