freeCodeCamp/curriculum/challenges/english/14-responsive-web-design-22/learn-css-grid-by-building-a-magazine/step-001.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
61437d575fb98f57fa8f7f36	Step 1	0	step-1

--description--

Begin with your standard HTML boilerplate. Add a DOCTYPE declaration, an html element, a head element, and a body element.

Add a meta tag with the appropriate charset and a meta tag for mobile responsiveness within the head element.

--hints--

Your code should contain the DOCTYPE reference.

assert(code.match(/<!DOCTYPE/gi));

You should include a space after the DOCTYPE reference.

assert(code.match(/<!DOCTYPE\s+/gi));

You should define the document type to be html.

assert(code.match(/<!DOCTYPE\s+html/gi));

You should close the DOCTYPE declaration with a > after the type.

assert(code.match(/<!DOCTYPE\s+html\s*>/gi));

Your html element should have an opening tag.

assert(code.match(/<html\s*>/gi));

Your html element should have a closing tag.

assert(code.match(/<\/html\s*>/));

Your DOCTYPE declaration should be at the beginning of your HTML.

assert(__helpers.removeHtmlComments(code).match(/^\s*<!DOCTYPE\s+html\s*>/i));

You should have an opening head tag.

assert(code.match(/<head\s*>/i));

You should have a closing head tag.

assert(code.match(/<\/head\s*>/i));

You should have an opening body tag.

assert(code.match(/<body\s*>/i));

You should have a closing body tag.

assert(code.match(/<\/body\s*>/i));

The head and body elements should be siblings.

assert(document.querySelector('head')?.nextElementSibling?.localName === 'body');

The head element should be within the html element.

assert([...document.querySelector('html')?.children].some(x => x?.localName === 'head'));

The body element should be within the html element.

assert([...document.querySelector('html')?.children].some(x => x?.localName === 'body'));

You should have two meta elements.

const meta = document.querySelectorAll('meta');
assert(meta?.length === 2);

One meta element should have a name set to viewport, and content set to width=device-width, initial-scale=1.0.

const meta = [...document.querySelectorAll('meta')];
const target = meta?.find(m => m?.getAttribute('name') === 'viewport' && m?.getAttribute('content') === 'width=device-width, initial-scale=1.0' && !m?.getAttribute('charset'));
assert.exists(target);

The other meta element should have the charset attribute set to UTF-8.

const meta = [...document.querySelectorAll('meta')];
const target = meta?.find(m => !m?.getAttribute('name') && !m?.getAttribute('content') && m?.getAttribute('charset')?.toLowerCase() === 'utf-8');
assert.exists(target);

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