Make http://www.covid19info.info mobile friendly (total budget $10)

I want to make my site [login to view URL] mobile friendly. Currently I identify these few problems when i play around with my site: 1 (this is both a problem in mobile and desktop version), If I go into any post, I realized the font size is too small. I would need to make changes so that the default font size in the post is more reasonable. ($2 milestone) 2, When I open with my phone vertically, under short statistics and charts, I realized the date time is not in the middle. Further more, the dateline is not user's local time. I want to edit it so that the datetime is in the middle and it displays local time ($3 milestone) 3, When I slide down the website in the mobile (holding my phone horizontally), I realized the the menu blocks the view too much. So I don't want that blocking menu to be there when i am viewing with my phone. ($3 milestone) 4, When I slide down the website in the mobile (holding my phone horizontally) to the popular posts sections. It seems each blog is too large. We probably don't need to be that large. Want to fix that too if possible.