CSS CSS Basics Understanding Values and Units Em and Rem Units

Shoaib Khan
Shoaib Khan
Front End Web Development Techdegree Graduate 18,317 Points

I need help on a px to em conversion question.

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

I have done this by using 16px as the base and then converting to em and getting 3.3.13em. Where do you think I am going wrong? Please advise.

/* Complete the challenge by writing CSS below */

header {
  font-size: 1.8rem;

.title {
  font-size: 1.625rem;

h1 {
  font-size: 5.625rem;

h2 {
    font-size: 3.313em;
<!DOCTYPE html>
    <title>Lake Tahoe</title>
    <link rel="stylesheet" href="page.css">
    <link rel="stylesheet" href="style.css">
      <span class="title">Journey through the Sierra Nevada Mountains</span>
      <h1>Lake Tahoe, California</h1>
    <div class="main-content">
        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.
      <a href="#">Find out more</a>
      <h2>Check out all the Wildlife</h2>
        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.
      <a href="#">See the Wildlife</a>
      <h3>From Tents to Resorts</h3>
        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>All rights reserved to the state of <a href="#">California</a>.</p>
      <a href="#top">Back to top &raquo;</a>

2 Answers

Shoaib Khan
Shoaib Khan
Front End Web Development Techdegree Graduate 18,317 Points

I was able to figure it out! PXtoEM.com’s calculation was incorrect so I used the PX to EM converter by W3Schools and was able to get the right conversion. Thanks for the reply!

Also you can just divide 53 by 16 and get the correct answer of 3.3125em instead of using a converter.

Alex Koumparos
Alex Koumparos
Python Web Development Techdegree Student 35,913 Points

Hi Shaoib,

The challenge checker can be fussy about rounding. Try replacing your value that is rounded to 3DP with the exact value.