JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head>
  <body>
    <div class="app-wraper">
      <div class="Navbar"></div>
      <div class="main-content">
        <div class="Bidlist">
          <div class="column">
          <div class="content-container">
          <ul class="list-group instruments">
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            <li class="intrument"></li>
            </ul>
            </div>
          </div>
        </div>
      </div>
      <div class="footer"></div>
    </div>
  </body>
</head>
</html>

CSS

html,body
{
  background-color: #212121;
  overflow: hidden;

}

/* layout */

.app-wraper  {
  display: flex;
  height: 100vh;
  max-height: 100vh;
  flex-direction: column;
  justify-content: flex-start;
}

.Navbar {
  height: 50px;
  background-color: black;
  margin-bottom: 0px;
}

.main-content  {
  display: flex;
  flex-direction: row;
  flex-grow: 1;
}

.Bidlist {
  min-width: 25%;
  display: flex;
  flex-direction: column;
  padding-left: 0px!important;
  padding-right: 1px!important;
  background-color: grey;
}

.column {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  border: 2px solid #3D3C3D;
  -webkit-border-radius: 6px;
  -moz-border-radius: 6px;
  border-radius: 6px;
  margin-bottom: 2px;
  height: 200px;
  overflow:scroll;
}

.ContentContainer {
  flex-grow: 1;
  display: flex;
}

.instruments {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.instrument {
  flex-grow: 1;
}
.footer {
  height: 25px;
  background-color: black;
}