It depends on the size of the document (how many pages). Even so, only by a very minute amount, maybe a few bytes.
When you change the font size, the size of the characters on the screen will change in size. The characters will appear larger or smaller depending on how you adjust the font size.
You cannot change the font-style of Chrome inbuilt. However there are extensions of Chrome which can do that.
Font
style="font-size:10px"
The font file that displays the character doesn't exist in GstarCAD. You can change it into other font file or copy this font file to font library.
font or paragraph
This is referred to as "font formatting."
You cannot increase the file name as it is not valid. The font size can be increased in the <style> element.
Formating includes- 1. Font. 2. Font Sizes. 3. Underline Style. 4. Add Effect. 5. Change Case. 6. Change characters spacing and so and so.
font style
A font is a style or design of text. For example A, Z, 1 and 9 etc. You can change style, design, size of a font.
Your question is confusing. If you need to change the style of the text, you need to use style/CSS.