Hi again,
Please replace the previous code with the following code:
.blog .entry-wrap, .single .entry-wrap {
border-radius: 0;
}
.blog .x-container.offset, .single .x-container.offset {
margin-top: 0;
border: 5px solid #000;
}
.blog .x-sidebar, .single .x-sidebar {
border: 5px solid #000;
border-top: 0;
border-right: 0;
padding: 10px;
}
If you would like to learn CSS, I am sharing few resources that you take a look to get started with CSS and an interesting tool that you can use to speed up the development process.
I recommend you to watch following video that will help you to get started with CSS.
https://www.youtube.com/watch?v=MFR4WXiLzpc
Sometimes it can get a bit difficult to find out the right selector to be able to write the required CSS codes. A handy tool that can help you in this is Google Chrome dev tools. I am sharing the resource that you can refer to get started with dev tools.
https://developers.google.com/web/tools/chrome-devtools/css/
https://developers.google.com/web/tools/chrome-devtools/
https://www.youtube.com/watch?v=tP_kXBJWPhQ&t=200s
Hope this helps!