Metric tree

<style>
  .metric-tree {
  --node-gap: 20px;
  --node-width: 80px;
  --double-node-width: calc(var(--node-width) * 2 + var(--node-gap));
  --connector-color: var(--color-border2);
  --connector-style: solid;
  --connector-width: 1px;
  --connector-radius: 4px;
  --connector-height: 48px;
  list-style: none;
  margin: 0;
  padding: var(--size1);
  display: flex;
  flex-direction: column;

  & li {
    display: grid;
    justify-content: center;
    box-sizing: content-box;
  }
  & li.level1 {
    grid-template-columns: var(--double-node-width);
  }
  & li.level2 {
    grid-template-columns: repeat(3, var(--double-node-width));
  }
  & li.level3 {
    grid-template-columns: repeat(4, var(--double-node-width));
  }
  & li.level4 {
    grid-template-columns: repeat(5, var(--double-node-width));
  }
  & li.lines.level1 {
    grid-template-columns: calc(var(--double-node-width) * 2);
  }
  & li.lines.level2 {
    grid-template-columns: repeat(3, var(--double-node-width));
  }
  & li.lines.level3 {
    grid-template-columns: repeat(4, var(--double-node-width));
  }
  & li.lines .line {
    height: var(--connector-height);
    position: relative;
  }
  & li.lines .line .line-before {
    content: "";
    width: var(--connector-width);
    height: 50%;
    background: var(--connector-color);
    position: absolute;
    left: calc(50% - var(--connector-width));
  }
  & li.lines .line .line-after {
    content: "";
    border-color: var(--connector-color);
    border-style: var(--connector-style);
    border-width: var(--connector-width) var(--connector-width) 0px
      var(--connector-width);
    border-radius: var(--connector-radius) var(--connector-radius) 0 0;
    position: absolute;
    width: calc(100% - var(--connector-width));
    height: 50%;
    bottom: 0;
    left: calc(var(--connector-width) * -1);
  }
}
.metric-tree article.node {
  margin-inline: var(--node-gap);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-color: var(--color-border1);
  border-radius: var(--connector-radius);
  border-width: 0;
  border-style: var(--connector-style);
  & .header {
    display: flex;
    flex-direction: column;
    padding: var(--size2);
  }
  & .graph {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-end;
  }
}
.metric-tree {
  & h4 {
    padding: 0; 
    margin: 0; 
    text-align: center;
    display: none;
  }
  & h2 {
    padding: 0; 
    margin: 0; 
    text-align: center;
    font-size: var(--font-lg);
    line-height: 1.2;
  }
  & h3 {
    padding: 0; 
    margin: 0; 
    text-align: center;
    font-size: var(--font-sm);
    line-height: 1.2;
    color: var(--color-text1);
  }
}
.disclaimer {
  padding: 24px;
  width: 620px;
  margin: 0 auto;
  color: var(--color-text1);
  text-align: center;
} 
</style>
<ul class="metric-tree">
  <li class="level1">
    <article class="node">
      <div class="header">
        <h3>{{fields.calc_1.label}}</h3>
        <h4>Our most important metric</h4>
        <h2>{{result._totals._first.calc_1.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="calc_1" height="60" width="150" type="area" color="#78A851" show-axis=""></sparkline>
      </div>
    </article>
  </li>
  <li class="level1 lines">
    <div class="line"><span class="line-before"></span><span class="line-after"></span></div>
  </li>
  <li class="level2">
    <article class="node">
      <div class="header">
        <h3>{{fields.order_items.total_sale_price.label}}</h3>
        <h4>Money from customers</h4>
        <h2>{{result._totals._first.order_items.total_sale_price.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="order_items.total_sale_price" height="40" width="150" type="area" color="#5D6471" show-axis=""></sparkline>
      </div>
    </article>
    <article class="empty"></article>
    <article class="node">
      <div class="header">
        <h3>{{fields.inventory_items.cost_sum.label}}</h3>
        <h4>Money we pay out</h4>
        <h2>{{result._totals._first.inventory_items.cost_sum.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="inventory_items.cost_sum" height="40" width="150" type="area" color="#FF6161" show-axis=""></sparkline>
      </div>
    </article>
  </li>
  <li class="level2 lines">
    <div class="line"><span class="line-before"></span><span class="line-after"></span></div>
    <article class="empty"></article>
    <div class="line"><span class="line-before"></span><span class="line-after"></span></div>
  </li>
  <li class="level3">
    <article class="node">
      <div class="header">
        <h3>{{fields.users.count.label}}</h3>
        <h4>that actually purchased stuff</h4>
        <h2>{{result._totals._first.users.count.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="users.count" height="40" width="150" type="bar" color="#5D6471" show-axis=""></sparkline>
      </div>
    </article>
    <article class="node">
      <div class="header">
        <h3>{{fields.order_items.sale_price_average.label}}</h3>
        <h4>per order</h4>
        <h2>{{result._totals._first.order_items.sale_price_average.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="order_items.sale_price_average" height="40" width="150" type="line" color="#5D6471" show-axis=""></sparkline>
      </div>
    </article>
    <article class="node">
      <div class="header">
        <h3>{{fields.calc_2.label}}</h3>
        <h4>What it took to make the stuff</h4>
        <h2>{{result._totals._first.calc_2.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="calc_2" height="40" width="150" type="bar" color="#FF6161" show-axis=""></sparkline>
      </div>
    </article>
    <article class="node">
      <div class="header">
        <h3>{{fields.calc_3.label}}</h3>
        <h4>Cost to move stuff around</h4>
        <h2>{{result._totals._first.calc_3.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="calc_3" height="40" width="150" type="bar" color="#FF6161" show-axis=""></sparkline>
      </div>
    </article>
  </li>
  <li class="level3 lines">
    <div class="line"><span class="line-before"></span><span class="line-after"></span></div>
  </li>
  <li class="level4">
    <article class="node">
      <div class="header">
        <h3>{{fields.calc_4.label}}</h3>
        <h4>to our website</h4>
        <h2>{{result._totals._first.calc_4.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="calc_4" height="40" width="150" type="bar" color="#5D6471" show-axis=""></sparkline>
      </div>
    </article>
    <article class="node">
      <div class="header">
        <h3>{{fields.calc_5.label}}</h3>
        <h4>Description</h4>
        <h2>{{result._totals._first.calc_5.value}}</h2>
      </div>
      <div class="graph">
        <sparkline field="calc_5" height="40" width="150" type="line" color="#5D6471" show-axis=""></sparkline>
      </div>
    </article>
  </li>
</ul>
<P class="disclaimer">This tree is highly customized to basically this exact metric tree shape. If you're willing to dig into some html/css it could be massaged to some other examples as well.</P>