css—grid css文件被用来组织布局和结构。通过定义基本的头部，底部和列设置为你网站的创建轮廓，线框模型(winframe)。
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).
网站设计要一致。所有网页应该设置相同的字体(文本型号)、导航链接、外观布局、以及配色方案。
Be consistent in your design. Each page should have the same fonts (text style), the same navigation links, the same general layout, the same color scheme, etc.
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