What the value of the space between the red and a blue box? What is it defined by?

When I try to set margin top for blue box at 0px it doesnt change anything, so I am just wondering is there a default value for that space between two h5s?

Your code so far

.injected-text {
  margin-bottom: -25px;
  text-align: center;

.box {
  border-style: solid;
  border-color: black;
  border-width: 5px;
  text-align: center;

.yellow-box {
  background-color: yellow;
  padding: 10px;

.red-box {
  background-color: crimson;
  color: #fff;
  padding-top: 40px;
  padding-right: 20px;
  padding-bottom: 20px;
  padding-left: 40px;

.blue-box {
  background-color: blue;
  color: #fff;
  padding-top: 40px;
  padding-right: 40px;
  padding-left: 20px;
  padding-bottom: 20px;
<h5 class="injected-text">margin</h5>

<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36.

Challenge: Add Different Padding to Each Side of an Element

Hello there,

If you look at the devTools:

After applying margin-top: 0px; to the .blue-box, there is no difference, because the .red-box has a default margin-bottom, from being an h5 element.

Hope this helps