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CSS CSS Basics (2014) Understanding Values and Units Em and Rem Units

Posted by John Harles
John Harles
20,614 Points

Challenge question to use the em unit to make the font size of h2 equal to 53 pixels.

The challenge question asks to create a new rule that targets the h2. The h2's parent element has a font size of 16px. Use an em unit to give the h2 a font-size value equivalent to 53 pixels.

The code I wrote to answer the question is:

h2 { font-size: 3.312em; }

The above answer is not correct.

I used the formula 53/16 to come up with 3.312 as the value for the em unit.

What I'm I doing incorrectly

Thanks John

style.css 
/* Complete the challenge by writing CSS below */

header {
  font-size: 1.8em;
}

.title {
  font-size: 1.625rem;
}

h1 {
  font-size: 5.625rem;
}

h2 {
  font-size: 3.312;
}
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>
      <span class="title">Journey through the Sierra Nevada Mountains</span>
      <h1>Lake Tahoe, California</h1>
    </header>
    <div class="main-content">
      <p>
        Lake Tahoe is one of the most breathtaking attractions 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="#">Find out more</a>
      <h2>Check out all the Wildlife</h2>
      <p>
        As spawning season approaches, the fish acquire a humpback and protuberant jaw. After spawning, they die and their carcasses provide a feast for gatherings of mink, bears, and Bald eagles.
      </p>
      <a href="#">See the Wildlife</a>
      <h3>From Tents to Resorts</h3>
      <p>
        Lake Tahoe is full of wonderful places to stay. You have the ability to sleep in the outdoors in a tent, or relax like a king at a five star resort. Here are our top three resorts:
      </p>
    </div>
    <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>

3 Answers

Joe Cochran
Joe Cochran
18,249 Points

You are rounding 3.3125 down to 3.312. Also, they ask for em units, and in the code you post it just says font-size: 3.312;

Keep the 5 on the end and add the units to make it pass :)

In cases like this, it's always best to leave the highly specific value and let browsers decide when to round.

so:

h2 {
  font-size: 3.3125em;
}

Should do the trick.

Merritt Lawrenson
Merritt Lawrenson
13,477 Points
Merritt Lawrenson
Merritt Lawrenson
13,477 Points

You forgot units - the 'em' on the h2 rule. Also you rounded wrong - 53/16 is 3.3125, which rounds to 3.313.

h2 {
  font-size: 3.313em;
}
John Harles
John Harles
20,614 Points
John Harles
John Harles
20,614 Points

I used the value 3.3125em and it worked for the challenge question.

h2 { font-size: 3.3125em; }

Thanks for your help. John