background and Separate content

Hi, I saw a little trouble with the “Sperate content” and “big pictures” blog page.

there is this code, which removes the color outline around the items

body.separate-blog.separate-layout #blog-entries.blog-grid>* {
background-color: transparent;
padding: 0 20px 0 0;
}

what I’ve done now to change that is to put this into custom css

body.separate-blog.separate-layout #blog-entries>* {
background-color: #fff !important;
padding: 30px !important;
border: 0;
margin-bottom: 20px;
}

but I wanted to know if it was wanted or if it was a bug.