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