<h3>等幅クラス(.fa-fw)なし</h3>
<div class="fa-2x">
  <div><i class="fas fa-home"></i> Home</div>
  <div><i class="fas fa-info"></i> Info</div>
  <div><i class="fas fa-book"></i> Library</div>
</div>

<h3>等幅クラス(.fa-fw)(わかりやすいように背景色を入れています)</h3>
<div class="fa-2x bgc">
  <div><i class="fas fa-home fa-fw"></i> Home</div>
  <div><i class="fas fa-info fa-fw"></i> Info</div>
  <div><i class="fas fa-book fa-fw"></i> Library</div
</div>
.bgc .fa-fw {
  background:MistyRose;
}

h3 {
  border-bottom: 1px solid #000;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://use.fontawesome.com/releases/v5.0.6/js/all.js