Hello i am experimenting with Blogger
I added this image by saving it to my computer from the internet. I then pressed insert image and placed it in.
I added the video by going on YouTube and acquiring the embed code from the share option and pasting it in on he HTML section.
I added this PowerPoint by uploading it to google drive. I then opened it in google slides and pressed publish to web. I then got the embed code and put it in the html section of this post.