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