HTTP headers allow the client and the server to pass additional information with the request or the response. A request header consists of its case-insensitive name followed by a colon ':', then by its value (without line breaks). Leading white space before the value is ignored.
<head> contains 3 <style> sections. Total size: 12438 bytes.
|media||only screen and(max-width: 640px)|
<head> contains 1 internal script sections. Total size: 76 bytes.
<head> section doesn't contain a base section.