body,html{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif}*,:after,:before{box-sizing:border-box}canvas,iframe,img,svg,video{max-width:100%;height:auto}body,html{width:100%;overflow-x:hidden}.bg-danger{color:#fff;background:#d9534f;padding:8px 10px;margin-bottom:10px}