Except to see two different font-size, but both have same font-size
<div class="entry">
<h3>Headquarter 1</h3>
</div>
<div class="h3-block">
<h3>Headquarter 2</h3>
</div>
.h3-block > .h3, h3 {
font-size: 1.125rem;
}
.entry > .h3, h3 {
font-size: 1.75rem;
}