Learn the CSS Box Model by Building a Rothko Painting - Step 35

Tell us what’s happening:
Describe your issue in detail here.
Create a rule that targets both .one and .two and increase their blur effect by 1 pixel.
Your code so far

/* file: styles.css */
.canvas {
  width: 500px;
  height: 600px;
  background-color: #4d0f00;
  overflow: hidden;
  filter: blur(2px);
}

.frame {
  border: 50px solid black;
  width: 500px;
  padding: 50px;
  margin: 20px auto;
}

.one {
  width: 425px;
  height: 150px;
  background-color: #efb762;
  margin: 20px auto;
}

.two {
  width: 475px;
  height: 200px;
  background-color: #8f0401;
  margin: 0 auto 20px;
}

.one .two{
  filter: blur(1px);
}


.three {
  width: 91%;
  height: 28%;
  background-color: #b20403;
  margin: auto;
}
<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Rothko Painting</title>
    <link href="./styles.css" rel="stylesheet">
  </head>
  <body>
    <div class="frame">
      <div class="canvas">
        <div class="one"></div>
        <div class="two"></div>
        <div class="three"></div>
      </div>
    </div>
  </body>
</html>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (HTML5, like Gecko) Chrome/107.0.0.0 Safari/537.36

Challenge: Learn the CSS Box Model by Building a Rothko Painting - Step 35

Link to the challenge:

use a comma between the class selector names to select both types at the same time