body,html{margin:0;background-color:#f8f8f8;height:100%;font-size:14px}body:lang(en){font-family:Open Sans,sans-serif}body:lang(zh-tw){font-family:Noto Sans TC,sans-serif}body:lang(zh-cn){font-family:Noto Sans SC,sans-serif}body:lang(ja){font-family:Noto Sans JP,sans-serif}#iframe-preview{position:fixed;top:0;left:0;bottom:0;right:0;width:100%;height:100%;z-index:100;display:none;border:none}