title: There is a small blue line between two of my buttons in HTML/CSS
body: <p><a href="https://i.stack.imgur.com/jD7z1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jD7z1.png" alt="enter image description here"></a></p>
  
  <p>That is an image of the two buttons with the small little blue line in the middle. This is my css/html</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-html lang-html prettyprint-override"><code>&lt;body&gt;
  
    &lt;div class="top"&gt;
      &lt;h1&gt;&lt;/h1&gt;
    &lt;/div&gt;
  
    &lt;div class="top-rectangle"&gt;
  
    &lt;/div&gt;
  
    &lt;div class="top-main"&gt;
      &lt;p class="title3"&gt;&lt;/p&gt;
    &lt;/div&gt;
  
    &lt;div class="main-buttons"&gt;
      &lt;a href="/downloads/list.php" target="_blank"&gt;
        &lt;button type="download-button" class="btnop" style="text-align: center"&gt;Download&lt;/button&gt;
        &lt;a href="pastes" target="_blank"&gt;
          &lt;button type="purchase-button" class="btnop" style="text-align: center"&gt;Purchase&lt;/button&gt;
        &lt;/a&gt;
    &lt;/div&gt;
  
    &lt;style&gt;
      .btnop {
        background: #298371;
        color: white;
        height: 104px;
        width: 308px;
        font-size: 1.2em;
        border-radius: 5px;
        border-width: 0px;
      }
    &lt;/style&gt;
  &lt;/body&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I've looked for typing errors and stuff like that and I cannot find out why this little blue line is just sitting inbetween the buttons and attaching them..?</p>