The WordPress Twenty Fifteen base theme is responsive across devices, with vertical menus to organize large amounts of content for my academic courses and projects. I created this child theme to modify the following:

• sidebar menu positioned on the right side of primary content
• author byline and date at the top of posts/pages, not bottom
• submenu items are displayed whenever the parent/sibling page is active, not just when down-arrow is clicked

Note that TwentyFifteen base theme does not display the admin's name at either top or bottom of the post, until another author creates a post (thereby making it a multi-author blog), and then all posts will have bylines. The same principle holds true for pages: no byline will appear until another author/editor/admin creates a page, then all existing pages will have bylines.

• Thanks @hareesh-pillai with display of submenu items http://stackoverflow.com/questions/32122117/wordpress-twentyfifteen-submenu-items-to-display-when-parent-sibling-page-is-act
• WordPress Codex TwentyFifteen https://codex.wordpress.org/Twenty_Fifteen
• Tutorial: How to customize TwentyFifteen to make it your own http://premium.wpmudev.org/blog/customize-twenty-fifteen
• Tutorial: Remove author (entry-footer metadata) from WordPress https://shortbread.me/remove-author-entry-footer-metadata-from-wordpress-twentyfifteen/

Download the zipped file from this GitHub master page, and upload into your WordPress.org themes. Requires TwentyFifteen theme, since this is a child theme of it.

To add 250x250 logo above the menu, follow instructions on this page (https://wordpress.org/support/topic/how-to-add-business-logo-as-header-at-top-of-left-side-tool-bar) and add code directly to style.css, or use WP Add Custom CSS plugin (https://wordpress.org/plugins/wp-add-custom-css/)