#wrapperparent {
    height: 100vh;
}

@media screen and  (max-width:767px) {
    #biographywrapper {
        background: url(/assets/img/biography-bg-mobile.jpg) no-repeat !important;
        background-size: 100% auto !important;
    }
    #biographytext {
        padding-top: 1rem !important;
    }
    #wrapperparent {
    height: auto;
    }
    
}