sidebar fake

gistfile1.html

<style>

  html, body {
    padding: 0;
    margin: 0;
  }

  .work {
    padding: 0;
    margin: 0;
    width: 100%;
    background: red;
    display: table;
  }

  
  
  .sidebar {
    width: 13%;
    float: left;
  }

  .content {
    width: 87%;
    padding: 0;
    margin: 0;
    float: right;
    background: #f1f1f1;
    
  }
</style>

<div class="work">

    <div class="sidebar">
      asdasd
    </div>

    <div class="content">
      asdasd<br />asd aas<br />asd dasd<br />
    </div>
    
</div>