Olsen is a stylish blogging theme WordPress created By CSSIgniter . You can check the Olsen theme demo . If you are using WordPress.com premium plan you can use this theme. It features a focused layout with crisp fonts, providing a fluid and relaxing reading experience. Its minimal design and unobtrusive color palette make it ideal for lifestyle and fashion bloggers who need their images to pop next to their content.
Here i am sharing css code to style your Olsen theme. So You can use my shared code and ask question in the comments section.