Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

CSS CSS Basics (2014) Understanding Values and Units Styling the Intro Paragraph

select the intro class and add a font-size property. Using 16px as the parent font-size context, give intro an em font

select the intro class and add a font-size property. Using 16px as the parent font-size context, give intro an em font-size value equivalent to 20px

index.html
<!DOCTYPE html>
<html>
  <head>
    <title>Lake Tahoe</title>
    <link rel="stylesheet" href="page.css">
    <link rel="stylesheet" href="style.css">
  </head>
  <body> 
    <header id="top" class="main-header">
      <span class="title">Journey Through the Sierra Nevada Mountains</span>
      <h1>Lake Tahoe, California</h1>
    </header>
    <div class="primary-content t-border">
      <p class="intro">
        Lake Tahoe is one of the most <span>breathtaking attractions</span> located in California. It's home to a number of ski resorts, summer outdoor recreation, and tourist attractions. Snow and skiing are a significant part of the area's reputation.
      </p>
      <a href="#more">Find out more</a>
    </div>
    <footer class="main-footer">
      <p>All rights reserved to the state of <a href="#">California</a>.</p>
      <a href="#top">Back to top &raquo;</a>
    </footer>
  </body>
</html>
style.css
/* Complete the challenge by writing CSS below */
.intro {
  font-size: 20em; 
}

2 Answers

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,860 Points

Hi Samuel,

You should review the Video about em units.
This challenge is asking you to assign the em value that is equivalent to 20px, not assign the value of 20em (which is actually the equivalent to 320px).
The answer will require some calculations, so I really do recommend a quick review.

:) :dizzy:

Dave StSomeWhere
Dave StSomeWhere
19,870 Points

The concept here is that the em value is a dynamically calculated value and proportional to the parent font-size. So, given a base font size of 16px is saying that 1em = 16px - now you do the math for "x"em = 20px - or divide 20 by 16 and get the 1.25em.