.mouse{
        width: 200px;
        height: 150px;
        border-radius: 50%;;
        position: fixed;
        left: -200px;
        z-index: 10000;
        pointer-events: none;
    }

    *{
        margin: 0;
        padding: 0;
        box-sizing:border-box;
        cursor: none;           
    }