How to make spaces have the same width in IE and FF?

body{font-size:12px; font-family:"宋体";}

Write the font size and font in the body to make it unified.

Set font: font-family: Songti, Arial

This is because the default fonts of FF and IE are different.

In FF the default font should be Arial

In IE

font-family: Songti If it is Songti, the width of a space is about the width of a Chinese character "宽"

font-family:Arial If it is Arial, the width of a space is about the width of a character "k"