1、 Overview of Flow Layout
Flow layout is a commonly used layout method in enterprise website design. It mainly uses percentages to set the width of elements, thereby achieving the effect of automatically adjusting according to the size of the device screen. Its characteristic is that the width of page elements will automatically adapt and adjust with the change of screen resolution, but the overall layout remains unchanged. For example, the size of the main partition areas in a webpage can be expressed as a percentage and combined with min – * and max – * attributes to ensure that the page presents a good layout effect on different devices and enhances the user’s browsing experience.
2、 The website design method of streaming layout
（1） Flow layout can set element width as a percentage and control size range with attributes. （2） Use max width: 100% to process images to ensure scaling with the parent element. （3） Media queries can adjust the layout at specific screen sizes. （4） CSS3 elastic box layout can easily achieve streaming layout, improving flexibility and responsiveness.
3、 Case study of flow layout
Taking JD website as an example, demonstrate the streaming layout in mobile applications, including framework and key points. JD mobile homepage streaming layout with clear framework. The top four small boxes are arranged with floating and percentage width. When making, pay attention to defining the maximum and minimum supported widths for the page. The key to image processing is to fix the width of the JD logo image and align it vertically in the center. Use a double sprite image for small icons, and reduce the size by half when measuring and setting the background size. In terms of layout, the search module uses a combination of absolute and relative positioning, while the navigation module has multiple floating tags with a width of 20% for each tag, achieving uniform distribution.
4、 Characteristics of Flow Layout
Flow layout has strong adaptability, defining element sizes in relative units, and can adaptively present good layout effects on multiple devices; Better readability, text and images will dynamically adjust according to viewport size; High flexibility, able to adapt to future new equipment; But there are also drawbacks, such as when the screen scale span is too large, it may not display properly on screens that are too small or too large, and some elements may be excessively stretched, affecting aesthetics and readability.
5、 Differences from other layouts
Static layout lacks flexibility, using px as the unit, the layout remains unchanged; Flow layout uses percentages to define width, with strong adaptability. Element width and partial height can automatically adapt with resolution changes, while the overall layout remains unchanged. The flow range is controlled by percentages to define width and attributes, achieving adaptability; Adaptive layout defines a set of layouts for different resolutions, with element positions changing and sizes remaining unchanged. Use @ media to switch styles; The position and size of responsive layout elements change to accommodate all devices, combining multiple layouts.
6、 Flow layout in popular trends
Streaming layout occupies an important position in the popular trend of website design. In mobile first design, it can adapt to changes in screen size of mobile devices, optimize layout and functionality for mobile devices, and enhance reading convenience for mobile users. Plays a key role in responsive web design by implementing a streaming layout of page elements through relative length units, enabling web pages to be compatible with different terminal devices. In short, streaming layout is widely used in mobile first and responsive web design, and is an indispensable part of website design trends.
7、 Advantages of Flow Layout
Flow layout has the advantages of strong adaptability, good readability, high flexibility, and providing a good user experience. It can automatically adjust according to the screen size of different devices, ensuring that users can easily browse web content; Text and images can be dynamically adjusted to maintain appropriate size and layout; Capable of adapting to future new equipment without the need for large-scale redesign; Provide users with a unified and comfortable browsing experience, enhance their trust and satisfaction with the website.
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