title: Bootstrap 4 layout with one width fixed column
body: <p>this is my html code:</p>
  
  <pre><code>&lt;div class="container-fluid d-flex h-100"&gt;
    &lt;div class="white h-100" style="background-color: white;"&gt;
      fixed 100px
    &lt;/div&gt;
    &lt;div class="col-3 blue h-100" style="background-color: blue;"&gt;
      3
    &lt;/div&gt;
    &lt;div class="col-6 red h-100" style="background-color: red;"&gt;
      6
    &lt;/div&gt;
    &lt;div class="col-3 blue h-100" style="background-color: blue;"&gt;
      3
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Can you help me to fix my code please? I need on left side column with fixed width, which will be have 100px. This column have not resize. Rest of space I need to should be dynamically adjustable in ratio 1 : 2 : 1. Thanks for help.</p>