#block-header_text, .dummy_header_text {
    background: url("yellow.jpg");
    background-size: cover;
}


.dummy_header_text .left h1 {
    font-size: 2.4em;
    margin-top: 10px;
}

.dummy_header_text .left h2 {
    margin-top: 5px;
    font-size: 1.2em;
}