BJ_web_developers / javaplatform

  body{
      position: relative;
  }
  body,html{

      overflow: hidden;

      width: 100%;
      height: 100%;
  }
  header{
      height: 100px;
      width: 100%;
      background-color: #f00;
  }
  nav{
      position: absolute;
      width: 100px;
      height: 100%;
      background-color: #000;
      left: 0;
      top:0;
      padding-top: 100px;
  }
  section{
      width: 100%;
      height: 100%;
      padding-left: 100px;

      /* padding-top: 100px; */
      margin-top: -100px;

  }