They just add semantic value, and you can use them to write CSS that gives them visual treatments to match that semantic value.
它们只是添加语义值，您可以使用它们来编写向它们提供视觉处理来匹配该语义值的CSS。
That information will help you identify the image file or CSS style that controls the visual appearance of that aspect.
该信息将帮助您标识控制这些方面的视觉外观的图像文件或css样式。
CSS has addressed many issues related to window dressing: fonts, spacing, padding, backgrounds, and more-all visual presentation elements.
CSS已解决许多与窗口修饰相关的问题：字体、间距、填充、背景，等等—所有视觉呈现元素。
This means all the presentation and visual behaviors are controlled by CSS.
这也就意味着所有的视觉展现和行为都是可以由CSS控制。
The visual appearance of a business space is controlled by a collection of external CSS files.
业务空间的视觉外观由一组外部CSS文件控制。
The theme CSS file and the images in the theme folder control much of the visual appearance of the business space and can be edited without affecting other themes.
主题CSS文件和theme文件夹中的图像控制业务空间的大部分视觉外观，可以在不影响其他主题的情况下进行编辑。
Instead, a well-written application should send data content to the browser and apply a Cascading Style Sheets (CSS) file to provide visual effects such as colors and font particulars.
相反的，一个格式良好的应用程序应该将数据内容发送到浏览器并应用一个Cascading StyleSheets (CSS)文件来产生视觉效果，比如颜色和特殊字体。
A separate CSS style sheet is linked from the document which will include visual rules for the design.
一个单独的css样式表是将包括视觉规则的设计。然后让html文件链接到这个新建的css样式表文件。
Although the CSS framework has been broken up into structural and visual bits, it does not address the need for a way to create the images used in the visual rendering of Ext JS components.
尽管CSS框架已分成结构化和可视化部分，但还未解决创建ExtJS组件的可视化渲染中用到的图片的需求。
Still, it is often more natural to start with CSS, maybe from a visual mock-up of some sort.
尽管如此，从CSS开始入手通常更自然一些，也许应该从某种可视的模型入手。
The CSS filter Lens can append to the visual sieved Lens and the convertible effect the normal HTML element, and it can also act on many Webs, even the whole Web station.
CSS滤镜能把可视化的滤镜和转换效果添加到一个标准的HTML元素上，可以根据需要作用于多个页面，甚至整个站点。
A CSS file, usually common for all the widgets (the theme), that contains visual styles to be applied to the widget's HTML templates.
一个CSS文件，通常对所有小部件通用(主题)，内含包含可应用到小部件HTML模板的可视样式。
Then CSS took the presentation styles out of the HTML tags and into style sheets, expanding the visual capabilities of web pages.
然后CSS把表达形式从HTML标签升级为样式表，扩展了网页的视觉效果。
Then CSS took the presentation styles out of the HTML tags and into style sheets, expanding the visual capabilities of web pages.
然后CSS把表达形式从HTML标签升级为样式表，扩展了网页的视觉效果。
应用推荐