<p class="caption">align-items: baseline;</p>
<div class="flex-container">
  <div class="a">
    A
  </div>
  <div class="b">
    B
  </div>
  <div class="c">
    C
  </div>
  <div class="d">
    D
  </div>
  <div class="e">
    E<br>
    lorem ipsum
    <br>
    lorem ipsum <br>
    lorem ipsum
  </div>
  <div class="f">
    F
  </div>
  <div class="g">
    G
  </div>
  <div class="h">
  </div>
</div>

.flex-container {
  display: flex;
  background-color: lighten(darkorange, 20%);
  border: 1px solid black;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 10px;
  height: 88vh;
  align-items: baseline;

  & div {
    border: 1px solid black;
    background-color: darkorange;
    margin: 2px;
    padding-left: 5px;
    padding-right: 5px;
  }
}

.a {
  font-size: 2em;
}

.b {
  font-size: 4em;
}

.c {
  font-size: 1em;
}

.d {
  font-size: 7em;
}

.e {
}

.f {
  padding-top: 3em;
}

.g {
  padding-top: 3em;
  padding-bottom: 3em;
}

.h {
  width: 30px;
  height: 50px;
}

.caption {
  text-align: center;
  margin: 0;
}