<div class="dashboard">
  <aside class="sidebar">
    <div class="logo">
      <img src="https://brandmark.io/logo-rank/random/beats.png" alt="">
    </div>
    <div class="menu-items">
      <ul>
        <li>Option 1</li>
        <li>Option 2</li>
        <li>Option 3</li>
      </ul>
    </div>
  </aside>
  <div class="wrapper">
    <div class="notifications">
      
    </div>
    <div class="container">
      <div class="card">
        <h4>Test</h4>
      </div>
    </div>
  </div>
</div>
* {
  margin: 0;
  padding: 0;
  outline: 0;
  box-sizing: border-box;
  height: 100%;
}

.dashboard {
  display: flex;
  height: 100%;
  width: 100%; 
  background-color: #e6e6e6;
}

.sidebar {
  height: 100%;
  width: 200px;
  display: flex;
  background-color: #fff;
  flex-direction: column;
  align-items: center;
  flex-wrap: wrap;
}

.logo {
  width: 100%;
  height: 100px;
  display: flex;
  justify-content: center;
}

.logo img {
  width: 100px;
}

.wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.notifications {
  width: 100%;
  height: 60px;
}

.container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  width: 200px;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.menu-items {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.menu-items ul {
  list-style: none;
}

External CSS

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External JavaScript

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