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