title: font awesome hover color margin turns black
body: <p>I'm a beginner trying out some things on rails as I work through Michael Hartl's tutorial. I am trying to have my social media buttons change color upon hover, but I see the change of color in two stages: when the pointer is within the 'radius' of the font awesome button, it turns black; then when the pointer is right over the button itself it shows the color I intend. How could I make the button change color without first turning black?</p>
  
  <p>After some searches, I've only found posts pertaining to changing the font awesome color upon hover, but I haven't found anything pertaining to this black-radius hover color change. All help is well received.</p>
  
  <p>Thanks!</p>
  
  <p>My footer html, where I placed the buttons:</p>
  
  <pre><code>&lt;footer class="footer"&gt;
    &lt;nav&gt;
      &lt;ul&gt;
        &lt;li&gt;&lt;a href="https://twitter.com/twitteraccount" class="btn btn-social-icon btn-twitter" target="_blank"&gt;&lt;i class="fa fa-twitter fa-2x"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href="https://www.facebook.com/facebookaccount" class="btn btn-social-icon btn-facebook" target="_blank"&gt;&lt;i class="fa fa-facebook fa-2x"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;/ul&gt;
    &lt;/nav&gt;
  &lt;/footer&gt;
  </code></pre>
  
  <p>The CSS:</p>
  
  <pre><code>@import "bootstrap-sprockets";
  @import "bootstrap";
  @import "font-awesome-sprockets";
  @import "font-awesome";
  
  
  /* universal */
  
  body {
    padding-top: 60px;
    background-color: #4B088A;
  }
  
  section {
    overflow: auto;
  }
  
  textarea {
    resize: vertical;
  }
  
  .center {
    text-align: center;
  }
  
  .right {
    text-align: right;
  }
  
  .center h1 {
    margin-bottom: 10px;
  }
  
  /* header */
  
  #logo {
    float: left;
    margin-right: 10px;
    font-size: 1.7em;
    color: #9400D3;
    text-transform: uppercase;
    letter-spacing: -1px;
    padding-top: 9px;
    font-weight: bold;
  }
  
  #logo:hover {
    color: #fff;
    text-decoration: none;
  }
  
  /* footer */
  
  footer {
    margin-top: 45px;
    padding: 15px;
    border-top: 1px solid #eaeaea;
    color: #fff;
  }
  
  footer a {
    color: #fff;
  }
  
  footer a:hover {
    color: #222;
  }
  
  footer small {
    text-align: center;
  }
  
  footer ul {
    float: right;
    list-style: none;
    font-size: 1.2em
  }
  
  footer ul li {
    float: left;
    margin-left: 15px;
  }
  
  .gap-right {
    margin-right: 10px; 
  }
  
  .fa:hover {
      color: #BCA9F5;
  }
  </code></pre>