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