The new column has a header cell at the top, a data cell in the middle, and a footer cell at the bottom.
新列在顶部拥有一个头单元，中部的一个数据单元，以及底部的一个底单元。
2
You can also tell the Template column to display this column differently in the footer by using a FooterTemplate.
您还可以使用FooterTemplate来告诉template列在页脚中以不同的方式显示该列。
3
Grid.css -a grid CSS file can have your layout structure (and act as the wireframe of your site, by defining the basic header, footer, and column set up).