#particles-js {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            z-index: 2;
        }
        
        #particles-js canvas {
            display: block;
        }
        
        #top {
            position: relative;
        }
        
        #top .overlay {
            z-index: 3;
        }
        
        #top .content {
            position: relative;
            z-index: 4;
        }