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