* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}
body {
    position: relative;
}

.spline-container{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index:-10;
}

.spline-container iframe{
    border: none;
    width: 100%;
    height: 100%
}