styles.css

/* Master Styles */
h1 {
  color: #369; 
  font-family: Arial, Helvetica, sans-serif;   
  font-size: 250%;
}
h2, h3 { 
  color: #444;
  font-family: Arial, Helvetica, sans-serif;   
  font-weight: lighter;
}
body { 
  margin: 2em; 
}
body, input[text], button { 
  color: #888; 
  font-family: Cambria, Georgia; 
}

header {
    width: 100%;
    background-color: #DEF4FF;
    padding: 1.5em;
    border-bottom: 1px solid #A2C6D8;
}

body {
    margin: 0;
    padding: 0;
}

header h3 {
    margin: 0;
    padding: 0;
}

header.stick {
    
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
}

main section {
    height: 600px;
    float: left;
}

main aside {
    float: right;
}

main aside.left-stick {
    position: fixed;
    right: 1.5em;
    top: 3em;
}