h1, .h1 {
    font-family: 'Open Sans', sans-serif !important;
    font-weight: 500; /* Optional */
    color: #000000; /* Optional */
}
h2, .h2 {
    font-family: 'Open Sans', sans-serif !important;
    font-weight: 300; /* Optional */
    color: #000000; /* Optional */
}