Reply To: Change background color of text box

Add the below css codes to remove the white color on the bottom:

article.page {
    background: none !important;
}

1. Add the below CSS:

article.post {
    box-shadow: none !important;
    background: none !important;
    border-bottom: none !important;
}

2. Below css:

.post .entry-meta {
    display: none;
}

Hope this will solve your issues.

Regards