Cells can be made equal size or be given varying percentage of the grid's width or height.
单元格的大小可以是相等的，或者是网格宽度或高度的某个给定可变百分比。
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For any further alterations of the font size, we used the percentage unit to preserve proportionality if the browsers default font size is changed by the user.
If you learn best in small Settings, focus on measures of class size, such as average class size or percentage of classes with enrollment below 20, or on student-faculty ratio.