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