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