body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  margin: 0;
}

a {
  color: #00B7FF;
}

h1 {
    text-align: center;
    font-size: 40px;
    height: 40px;
    margin: 0;
    padding-bottom: 20px;
}

.chart {
    height: calc( 100vh - 110px );
    width: 50%;
    position: relative;
}

.container {
    display: flex;    
}

@media only screen and (max-width: 950px) {
    .container {
        flex-direction: column;
        align-items: center;
    }

    .chart {
        width: 90%;
    }

    body {
        padding: 0;
    }
}