I have been struggling with how to fit a Table from WORD into my blog without overflowing. Normally Blogger is great a resizing, but not with my table.
After numerous failed attempts, included mucking about with HTML, I found the magic words were "body size".
The master document is in WORD and to get it to fit I changed the body size in Blogger. This is how I did that:
Step 1 - Go to your Blogger dashboard and click the "Options" button beside your blog title. Select the "Template" option.
Step 2 - Click the "Customize" button under the Live On Blog thumbnail.
Step 3 - Click "Adjust Widths" on the left sidebar. This will take you to a page with two slides: one for the entire width of the template, and one just for the sidebar. If your template has multiple sidebars, there will be a slider for each sidebar.
Step 4 - Slide the "Entire Blog" to the right to make the template wider or to the left to make it smaller. Each template has a minimum and a maximum width that you cannot exceed.
Step 5 - Change the sidebar widths to work in proportion to your layout.
Step 6 - Click "Apply to Blog" to save the width changes to your blog.
I found these instructions here: http://smallbusiness.chron.com/change-body-size-blogger-template-50154.html