/* .htmldiv {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #0f172a;
}
#canvas1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0f172a;
} */

#particles-js {
    position: absolute;
    width: 100%;
    height: 60%;
    /* z-index: -1; */
}