Learn CSS Transforms by Building a Penguin - Step 31

Tell us what’s happening:
I have been trying to set the border radius of the .penguin-head and its not working out

.penguin-head {
width: 50%;
height: 45%;
background: linear-gradient(
45deg,
gray,
rgb(239, 240, 228);
border-radius: 70% 70% 65% 65%;r

below is the instruction
Most penguins do not have a square head.

Give the penguin a slightly oval head by setting the radius of the top corners to 70% and the radius of the bottom corners to 65%.

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="stylesheet" href="./styles.css" />
    <title>Penguin</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  </head>

  <body>
    <div class="left-mountain"></div>
    <div class="back-mountain"></div>
    <div class="sun"></div>
    <div class="penguin">
      <div class="penguin-head"></div>
      <div class="penguin-body"></div>
    </div>

    <div class="ground"></div>
  </body>
</html>
/* file: styles.css */
body {
  background: linear-gradient(45deg, rgb(118, 201, 255), rgb(247, 255, 222));
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.left-mountain {
  width: 300px;
  height: 300px;
  background: linear-gradient(rgb(203, 241, 228), rgb(80, 183, 255));
  position: absolute;
  transform: skew(0deg, 44deg);
  z-index: 2;
  margin-top: 100px;
}

.back-mountain {
  width: 300px;
  height: 300px;
  background: linear-gradient(rgb(203, 241, 228), rgb(47, 170, 255));
  position: absolute;
  z-index: 1;
  transform: rotate(45deg);
  left: 110px;
  top: 225px;
}

.sun {
  width: 200px;
  height: 200px;
  background-color: yellow;
  position: absolute;
  border-radius: 50%;
  top: -75px;
  right: -75px;
}

.penguin {
  width: 300px;
  height: 300px;
  margin: auto;
  margin-top: 75px;
  z-index: 4;
  position: relative;
}


/* User Editable Region */

.penguin-head {
  width: 50%;
  height: 45%;
  background: linear-gradient(
    45deg,
    gray,
    rgb(239, 240, 228);
     border-radius: 70% 70% 65% 65%;
     

  
}

/* User Editable Region */


.ground {
  width: 100vw;
  height: 400px;
  background: linear-gradient(90deg, rgb(88, 175, 236), rgb(182, 255, 255));
  z-index: 3;
  position: absolute;
  margin-top: -58px;
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Challenge: Learn CSS Transforms by Building a Penguin - Step 31

Link to the challenge:

You have not closed your linear gradient. As you close it,make sure your border-radius is not part of the linear-gradient values.

Thanks alot Stephen, I figured out