Easy Steps to Add Images and Videos in your Blog
You can add photos and videos to any blog posts that you create.
Add an image to a blog
post
2.
Select the blog to update.
3.
Create a
new post or edit a post to add images.
4.
On the Post Editor, click Insert image 
.
.
5.
Choose where you'd like to upload the image from.
6.
Select one or more images to upload.
7.
Click Add selected.
8.
Once the image is in your post, click to change the size,
caption, or location on the page.
Drag images into a post
Add an image to a post quickly by drag and dropping.
1.
Create a
new post or edit a post to add images.
2.
Drag an image from a folder or desktop and drop it into the post
page where you want it.
Your photos will be stored in Picasa
Web Albums. Learn
more about storage space on Google Drive. If you delete a photo in
your blog, the photo will not be removed from Picasa Web Albums.
Learn how
to delete photos from Picasa Web Albums. If you delete photos or
change privacy settings in Picasa Web Albums, it will affect photos on your
blog.
If you move your blog to a custom domain, images over 400px may
not display on your page.
Make images bigger
To view images in a large overlay on top of your blog called a
Lightbox, click an image. You’ll also see all other images in the blog post
using this Lightbox.
To turn off Lightbox:
2.
Select the blog to update.
3.
In the left menu, select Settings > Posts and comments >
Posts.
4.
In “Showcase images with Lightbox,” select No.
Uploading issues
·
Turn off your pop-up blocker or add Blogger.com in your pop-up
blocker settings.
·
Turn off any plugins you have installed on your browser.
·
Try the latest versions of Google Chrome, Mozilla Firefox, and
Internet Explorer.
Add a video to your
blog
2.
Select the blog to update.
3.
Create a
new post or edit a post to add images.
4.
On the Post Editor, click Insert a video 
.
.
5.
Choose the video you want to use.
6.
Click Upload.
Note:
·
Avoid adding content hosted by someone else without their
consent.
·
Avoid adding content that violate our content policy. This
includes explicit imagery posted without the subject’s consent and hateful,
violent, and crude content.
Source:https://support.google.com
