/* This targets the blog page specifically. Adjust the selector as needed. */
.blog-page {
    background-color: #ffffff; /* White background */
}

/* In case the above selector doesn't work, you can try targeting the page container or body */
.page-container {
    background-color: #ffffff; /* White background */
}

body.blog-page {
    background-color: #ffffff; /* White background */
}

.theme-blog-author,
.theme-blog-author-cont {
    display: none !important;
}