Use the flex Shorthand Property FCC

this is what is asked:

These values will cause #box-1 to grow to fill the extra space at twice the rate of #box-2 when the container is greater than 300px and shrink at twice the rate of #box-2 when the container is less than 300px. 300px is the combined size of the flex-basis values of the two boxes.

this is my code:

  #box-container {
    display: flex;
    height: 500px;
  #box-1 {
    background-color: dodgerblue;
    flex: 2 2 150px,
    height: 200px;

  #box-2 {
    background-color: orangered;
    flex: 1 1 150px;
    height: 200px;

<div id="box-container">
  <div id="box-1"></div>
  <div id="box-2"></div>

I think i’ve done it right, have I gone wrong anywhere?

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Link to the challenge:

Check the end of the line.

Oops thank you for that!