How to place this green box to the end of the container

Issue

just need a little help with this html/css code, i'm working on this little project, how can i move this green box from left to the right as it is on the images.

How it is:

How should it be:

.container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  margin-bottom: 50px;
}

.container2 {
  border: 3px solid gray;
  width: 600px;
  height: 600px;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.purple {
  background-color: rgb(202, 117, 202);
  width: 200px;
  height: 200px;
}

.green {
  background-color: rgb(99, 151, 99);
  width: 200px;
  height: 200px;
}

.spacing {
  height: 200px;
}

<div class="container">
  <div class="container2">
    <div class="purple">

    </div>
    <div class="spacing">

    </div>
    <div class="green">

    </div>
  </div>
</div>

Solution

Use align-self

.container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  margin-bottom: 50px;
}

.container2 {
  border: 3px solid gray;
  width: 300px;
  height: 300px;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.purple {
  background-color: rgb(202, 117, 202);
  width: 100px;
  height: 100px;
}

.green {
  background-color: rgb(99, 151, 99);
  width: 100px;
  height: 100px;
  align-self: flex-end;
}

.spacing {
  height: 100px;
}

<div class="container">
  <div class="container2">
    <div class="purple">

    </div>
    <div class="spacing">

    </div>
    <div class="green">

    </div>
  </div>
</div>

Answered By - Paulie_D