--description--

You can add another level of organization in your HTML document within the html tags with the head and body elements. Any markup with information about your page would go into the head tag. Then any markup with the content of the page (what displays for a user) would go into the body tag.

Metadata elements, such as link, meta, title, and style, typically go inside the head element.

Here's an example of a page's layout:

<!DOCTYPE html>
<html>
  <head>
   <meta charset="utf-8">
   <title>Example title</title>
  </head>
  <body>
    <div>
    </div>
  </body>
</html>

--instructions--

Edit the markup so there's a head and a body. The head element should only include the title, and the body element should only include the h1 and p.

--hints--

There should be only one head element on the page.

const headElems = code.replace(/\n/g, '').match(/\<head\s*>.*?\<\/head\s*>/g);
assert(headElems && headElems.length === 1);

There should be only one body element on the page.

const bodyElems = code.replace(/\n/g, '').match(/<body\s*>.*?<\/body\s*>/g);
assert(bodyElems && bodyElems.length === 1);

The head element should be a child of the html element.

const htmlChildren = code
  .replace(/\n/g, '')
  .match(/<html\s*>(?<children>.*)<\/html\s*>/);
let foundHead;
if (htmlChildren) {
  const { children } = htmlChildren.groups;

  foundHead = children.match(/<head\s*>.*<\/head\s*>/);
}
assert(foundHead);

The body element should be a child of the html element.

const htmlChildren = code
  .replace(/\n/g, '')
  .match(/<html\s*>(?<children>.*?)<\/html\s*>/);
let foundBody;
if (htmlChildren) {
  const { children } = htmlChildren.groups;
  foundBody = children.match(/<body\s*>.*<\/body\s*>/);
}
assert(foundBody);

The head element should wrap around the title element.

const headChildren = code
  .replace(/\n/g, '')
  .match(/<head\s*>(?<children>.*?)<\/head\s*>/);
let foundTitle;
if (headChildren) {
  const { children } = headChildren.groups;
  foundTitle = children.match(/<title\s*>.*?<\/title\s*>/);
}
assert(foundTitle);

The body element should wrap around both the h1 and p elements.

const bodyChildren = code
  .replace(/\n/g, '')
  .match(/<body\s*>(?<children>.*?)<\/body\s*>/);
let foundElems;
if (bodyChildren) {
  const { children } = bodyChildren.groups;
  const h1s = children.match(/<h1\s*>.*<\/h1\s*>/g);
  const ps = children.match(/<p\s*>.*<\/p\s*>/g);
  const numH1s = h1s ? h1s.length : 0;
  const numPs = ps ? ps.length : 0;
  foundElems = numH1s === 1 && numPs === 1;
}
assert(foundElems);

--seed--

--seed-contents--

<!DOCTYPE html>
<html>
  <title>The best page ever</title>

  <h1>The best page ever</h1>
  <p>Cat ipsum dolor sit amet, jump launch to pounce upon little yarn mouse, bare fangs at toy run hide in litter box until treats are fed. Go into a room to decide you didn't want to be in there anyway. I like big cats and i can not lie kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Meow i could pee on this if i had the energy for slap owner's face at 5am until human fills food dish yet scamper. Knock dish off table head butt cant eat out of my own dish scratch the furniture. Make meme, make cute face. Sleep in the bathroom sink chase laser but pee in the shoe. Paw at your fat belly licks your face and eat grass, throw it back up kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>

</html>

--solutions--

<!DOCTYPE html>
<html>
 <head>
  <title>The best page ever</title>
 </head>
 <body>
  <h1>The best page ever</h1>
  <p>Cat ipsum dolor sit amet, jump launch to pounce upon little yarn mouse, bare fangs at toy run hide in litter box until treats are fed. Go into a room to decide you didn't want to be in there anyway. I like big cats and i can not lie kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Meow i could pee on this if i had the energy for slap owner's face at 5am until human fills food dish yet scamper. Knock dish off table head butt cant eat out of my own dish scratch the furniture. Make meme, make cute face. Sleep in the bathroom sink chase laser but pee in the shoe. Paw at your fat belly licks your face and eat grass, throw it back up kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
 </body>
</html>

--instructions--

--hints--

--seed--

--seed-contents--​

--solutions--

--seed-contents--