Build a Moon Orbit - Build a Moon Orbit

HTML-CSS
1

Tell us what’s happening:

Please I need help, I don’t know why it keeps showing this
“The top edge of the .moon element should be aligned with the top edge of its containing block.”

Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <title>Moon Orbit</title>
    <link rel="stylesheet" href="./styles.css">
</head>

<body>
   <div class="space"> 
    <div class="earth"> </div>
    <div class="orbit"> 
      <div class="moon"> </div>
    </div>
  </div>

</body>

</html>

/* file: styles.css */
.space {
  position: relative;
  margin: 50% auto;
  
  height: 200px;
  width: 200px;
  background-color: black;
}
.earth {
  background-color: blue;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  transform: translate(-50%, -50%);

}
.orbit {
  width: 200px;
  height: 200px;
  position: absolute;
  transform: translate(-50%, -50%);

  transform-origin: 50% 100%;
  animation: orbit 5s linear infinite;
}
.moon {
  position: absolute;
  width: 30px;
  height: 30px;
  background-color: gray;
  top: 0%;
  left: 50%;
  transform: translate(-50%);
  border-radius: 50%;
}
@keyframes orbit {
  0% {
    transform: rotate(0deg)
    translate(-50%, -50%);
  }
  100% {
    transform: rotate(360deg)
    translate(-50%, -50%);
  }
}
body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 Edg/142.0.0.0

Challenge Information:

Build a Moon Orbit - Build a Moon Orbit

2

Hi, welcome to the forum,

Regarding the position of the .moon element: if I change the unit in a rule to something absolute, it works. I’m trying not to give away the answer too easily, but I don’t see any instructions on this subject.

(bonus that is not required to succeed): if I give the .orbit element a background color, I see that the Earth is not in the center of the circle. I’m wondering about the presence of another CSS rule.