html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #ffffff;
    font-family: Arial, sans-serif;
    overflow: hidden; /* prevents page scroll messing with chart height */
}

/* Header area */
h2 {
    margin: 10px 15px 5px 15px;
}

a {
    color: #4da3ff;
    margin: 0 15px 10px 15px;
    text-decoration: none;
    display: inline-block;
}

a:hover {
    text-decoration: underline;
}

/* FULL SCREEN CHART CONTAINER */
.chart-container {
    width: 100%;
    height: calc(100vh - 80px); /* subtract header space */
    display: flex;
    padding: 10px 15px;
    box-sizing: border-box;
}

/* CRITICAL: canvas must stretch */
#chart {
    width: 100% !important;
    height: 100% !important;
    display: block;
}