.btext{
    position: absolute;
    top: 20%;
    width: 100%;
}

#particles-js{

    background-image: url('background.jpg');
/*    background-color: transparent;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;    
    height: 100vh;
    height:auto;
    max-height:250%;
    overflow:auto;  */
}