.students-header {
    height: 50vh;
    background: linear-gradient(rgba(39, 50, 53, 0.7), rgba(39, 50, 53, 0.7)), url("https://storage.googleapis.com/public.studentopportunitycenter.com/landing/images/img/students-header.jpg") center no-repeat;
    background-size: cover;
}