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