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