.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  padding: 0 0 0;
}

h1 {
 display: inline-block;
 color: #00ff00;
 margin: 8px 5px 0px 15px;
 font-size: 25px;
}

h2 {
 color: #ffff00;
 font-size: 35px;
 display: inline;
}

h3 {
 font-size: 30px;
 display: inline;
}

h4 {
 font-size: 25px;
 display: inline;
}

h5 {
 font-size: 20px;
 display: inline;
}

h6 {
 font-size: 15px;
 display: inline;
}