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