style.css

body, html{
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
}
.chart-wrap{
    margin:0 auto;
    width: 800px;
    height: 500px;
}
h2{
    text-align: center;
}
.important {
    width: 80%;
    background-color: #bdf;
    border: 2px solid #1bf;
    padding: 0.5rem;
    line-height: 1rem;
  }
.normal{
    margin: 0 auto; 
    width: 60%;
}
nav{
    width:250px;
    background-color: #eee;
    border-right: 1px solid #ddd;

    position: fixed;
    height: 100%;
}
.right{
    padding-left: 250px;
}
.menu li a{
    height: 30px;
    line-height: 30px;
    display: block;
    padding: 0 20px;
    font-size: 12px;
    color:#555;
}
h5{
    height: 30px;
    line-height: 30px;
    display: block;
    padding: 0 20px;
    font-size: 20px;
    color:#555;
}
.menu li a:hover{
    background-color: #559;
    color: white;
}