.search-img {
    background: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5)), url("../img/search.jpg") center center;
    background-size: cover;
    padding: 300px 0;
}

#search-button {
    background-color: white;
}

.form-control:focus {
    box-shadow: none;
}