I found my solution after searching here on the support forum that deals with container padding. I’m sorry that I was not clear enough while asking my question.
Used following code and it’s working perfectly fine. Only need CSS to wrap footer area to match above post.
.no-sidebar.single .inside-article > *,
.no-sidebar.page .inside-article > * {
max-width: 700px;
margin-left: auto;
margin-right: auto;
}
.no-sidebar.separate-containers .comments-area {
padding: 22px 140px 40px 140px;
}