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