3.1 KiB
| id | title | challengeType | dashedName |
|---|---|---|---|
| 619665c9abd72906f3ad30f9 | Step 1 | 0 | step-1 |
--description--
You will be building a happy Flappy Penguin, and further exploring CSS transforms and animations in the process.
Begin with your basic HTML boilerplate. Include the DOCTYPE declaration, html element with a language set to English, the appropriate meta tags, a head, body, and title element. Also, link your stylesheet to the page.
--hints--
Your code should have a <!DOCTYPE html> declaration.
assert(code.match(/<!DOCTYPE html>/i));
Your code should have an html element.
assert.equal(document.querySelectorAll('html')?.length, 1);
Your html element should have an opening tag with a lang attribute of en.
assert(code.match(/<html\s+lang\s*=\s*('|")en\1\s*>/gi));
Your html element should have a closing tag.
assert(code.match(/<\/html\s*>/gi));
Your code should have a head element within the html element.
assert.equal(document.querySelectorAll('head')?.length, 1);
Your code should have a body element within the html element.
assert.equal(document.querySelectorAll('body')?.length, 1);
Your head element should come before your body element.
assert.equal(document.querySelector('body')?.previousElementSibling?.tagName, 'HEAD');
You should have two meta elements.
const meta = document.querySelectorAll('meta');
assert.equal(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);
Your code should have a title element.
const title = document.querySelector('title');
assert.exists(title);
Your title should have some text.
const title = document.querySelector('title');
assert.isAtLeast(title?.textContent?.length, 1);
Your code should have a link element.
assert.exists(document.querySelector('link'));
Your link element should be within your head element.
assert(code.match(/<head>[\w\W\s]*<link[\w\W\s]*\/?>[\w\W\s]*<\/head>/i));
Your link element should have a rel attribute with the value stylesheet.
const link_element = document.querySelector('link');
const rel = link_element.getAttribute("rel");
assert.equal(rel, "stylesheet");
Your link element should have an href attribute with the value styles.css.
const link = document.querySelector('link');
assert.equal(link.dataset.href, "styles.css");
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