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