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