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