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