.wrap {
display: flex;
flex-flow: column;
}
.row {
display: flex;
flex-flow: row wrap;
background: yellow;
}
group label {
padding: 1em;
background: red;
}
<div class='wrap'>
<h2> Header </h2>
<div class='row'>
<group>
<label> Label </label>
</group>
</div>
</div>
Why isn't the padding included in the container's calculated height?