Element button pseudo-class :active generated with transition border 0px rgba(0,0,0,1) solid border-radius display inline-block opacity 0.49 text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing content-box height auto font-weight normal z-index auto width 160px float none position relative font-size 16px line-height 1 box-shadow 1px 1px 1px rgba(0,0,0,0.3) cursor crosshair background padding 20px overflow visible transform margin 0px