.container-header { background-color: black; background-image: none; 
} 
.mybanner {
    border:none;
    box-shadow:0 0 20px rgba(0,0,0,0.2);
    border-radius:6px;
}
.mybanner .card-body {
    padding:0!important;
}
.mybanner .card-body p {
    margin:0!important;
}