html,body{margin:0;padding:0;overflow-x:hidden;width:100%;box-sizing:border-box}*,*:before,*:after{box-sizing:border-box}body.fullscreen{overflow:hidden}.blur-background{filter:blur(5px);transition:filter .3s ease-in-out}body{height:100%;width:100%;background-color:#f0f0f0}