how do i find the viewport hight?

Question

Im stuck on this question and im not sure what to type in, and im not fure if where to find the viewport hight.

im kinda confused on how to answer

the original question is: Select the ''header'' element and set its "height" value to 25% of the viewport's height.

style.css

/* Complete the challenge by writing CSS below 
*/

header { height : vh 25;}

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Developer Diane's blog</title>
  <link rel="stylesheet" href="page.css">
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <header>
    Developer Diane’s Blog
  </header>
  <article>
    <section class="intro">
      <h1>The verdict is in. CSS Layout is great!</h1>
      <p>I’ve been working with CSS for a while now, and I have to say, it’s pretty awesome. I love being able to separate content from presentation, and to keep all my styles in an external stylesheet.</p>
      <p>I’ve had a pretty good grasp on the basics for a while now, but I needed to learn more about how to control layout with my CSS. Understanding CSS layout meant first exploring the parts of the CSS box model.</p>
    </section>
    <section class="featured">
      <h2>The CSS Box Model</h2>
      <p>There are lots of great resources online to help you learn the CSS Box Model. I like the CSS Tricks article <a href="https://css-tricks.com/the-css-box-model/" target="_blank">The CSS Box Model</a> by Chris Coyier. To quote the author:</p>
      <blockquote>At the risk of over-repeating myself: <strong>every element in web design is a rectangular box.</strong></blockquote>
      <p>That’s right! Every HTML element is considered by the browser to be a rectangular box.</p>
      <p>The CSS Box Model consists of four properties: content, padding, border, and margin. I've included a graphic from Coyier’s article to illustrate this principle.</p>
      <p class="clear">It’s pretty easy to understand the Content portion of the box model. The content is whatever your HTML consists of. It could be a paragraph full of text, or a bulleted list, or an image.</p>
      <p>Beginning developers may have some trouble keeping the other parts of the box model straight, so let’s examine them one by one.</p>
    </section>
    <footer>©2020 Developer Diane.</footer>
</body>
</html>

Answer 1 · 2022-01-26T07:21:23Z

January 26, 2022 7:21am

Hi Ethan,

You just have your syntax wrong. Look at the previous video at the time 1:55. That should solve your dilemma.

Hope this helps!

Answer 2 · 2022-01-26T13:28:29Z

January 26, 2022 1:28pm

25vh not vh 25. height: 25vh;

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Ethan Gonzalez

Ethan Gonzalez

how do i find the viewport hight?

2 Answers

Rick Gleitz

Rick Gleitz

Ethan Gonzalez

Ethan Gonzalez

psycholinguist

psycholinguist

Ethan Gonzalez

Ethan Gonzalez