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