Font changes when using Font Awesome icon
<p>I'd like to use the icons beside a text, but every time I try to use an icon from Font Awesome, it changes the font style of the text. What should I do in order for the font to stay the same even if I include a Font Awesome icon into it? Here's my code:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>jQuery(document).ready(function() {

  var navOffset = jQuery(".nav").offset().top;

  jQuery(".nav").wrap('&lt;div class="nav-placeholder"&gt;&lt;/div&gt;');
  jQuery(".nav-placeholder").height(jQuery(".nav").outerHeight());

  jQuery(window).scroll(function() {

    var scrollPos = jQuery(window).scrollTop();

    if (scrollPos &gt;= navOffset) {
      jQuery(".nav").addClass("fixed");
    } else {
      jQuery(".nav").removeClass("fixed");
    }

  });

});</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>body,
html {
  height: 100%;
  background-color: #f2f2f2;
  margin: 0px;
}
.parallax {
  background-image: url('images/bg.jpg');
  height: 100%;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
.parallax1 {
  background-image: url('images/bg.jpg');
  height: 46%;
  font-size: 0;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
ul.header {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  width: 100%;
  top: 0;
  display: block;
  text-align: center;
  background-color: #0d0d0d;
}
.nav {
  z-index: 999;
}
.navlink {
  display: inline-block
}
.fixed {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: #222422;
}
.nav-placeholder {
  margin: 0 0 0x 0;
}
.navlink a {
  font-family: arial;
  display: block;
  color: #f3f3f3;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 15pt;
}
.navlink a:hover {
  background-color: #f1f1f1;
  color: #0d0d0d;
  transition-duration: 0.4s;
}
.caption {
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  text-align: center;
  color: #000;
}
.caption span.border {
  background-color: #111;
  color: #fff;
  padding: 18px;
  font-size: 25px;
  letter-spacing: 10px;
}
.img1 {
  margin-top: 90px;
  border-radius: 50px;
  margin-right: 30px;
  transition: 0.3s;
  transition: all .2s ease-in-out;
}
.img1:hover {
  transform: scale(0.9);
  cursor: pointer;
}
#products {
  margin: 0px;
  font-size: 40pt;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.min.css"&gt;
&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"&gt;&lt;/script&gt;

&lt;div class="parallax"&gt;&lt;/div&gt;

&lt;div class="caption"&gt;
  &lt;span class="border"&gt; WELCOME &lt;/span&gt;
&lt;/div&gt;

&lt;div class="nav"&gt;
  &lt;ul class="header"&gt;
    &lt;ul class="header-content"&gt;
      &lt;li class="navlink"&gt;&lt;a href="{{ route('beverage_main') }}"&gt;&lt;i class="fa fa-home w3-xxlarge"&gt; Home&lt;/i&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li class="navlink"&gt;&lt;a href="{{ route('beverage_foods') }}"&gt; Foods &lt;/a&gt;&lt;/li&gt;
      &lt;li class="navlink"&gt;&lt;a href="#"&gt; Beverages &lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;
  &lt;/ul&gt;
&lt;/div&gt;

&lt;div style="height:auto;background-color:#f2f2f2;font-size:36px;text-align:center;"&gt;
  &lt;img class="img1" src="images/sw.jpg" width="350px" height="607px"&gt;
  &lt;img class="img1" src="images/cake.jpg" width="350px" height="607px"&gt;
  &lt;img class="img1" src="images/pizza.jpg" width="350px" height="607px"&gt;
&lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p>As you can see in the navigation bar, the HOME button's font is different from the rest. </p>