body {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
background-color: #000;
overflow: hidden;
margin: 0;
}
#chartdiv {
width: 100%;
height: 99vh;
minHeight: 800px;
}