Q: In mobile web design, are screen resolution and viewport size two different things?
Answer:
Yes, screen resolution and viewport size are two different concepts in mobile web design.
-
Screen Resolution: This refers to the number of pixels on the screen of a mobile device, usually expressed in terms of horizontal and vertical pixels. For example, 1920x1080 means that the screen has a width of 1920 pixels and a height of 1080 pixels. Screen resolution determines the physical number of pixels on the screen, but does not necessarily reflect the actual usable viewing area size, as different devices may have different pixel densities.
-
Viewport Size (Viewport Size): This refers to the size of the visible area used to render web page content in the browser. On mobile devices, the viewport size can be controlled via meta tags or CSS settings. Depending on the design and development of the web page, the viewport size can be smaller, equal, or larger than the device's screen resolution.
Usually, the screen resolution of mobile devices will be higher, but in order to provide a better user experience, mobile web pages usually use a smaller viewport size to ensure that the content is displayed correctly on the screen without requiring the user to constantly zoom and scroll. In this case, the viewport size may be smaller than the screen resolution to accommodate different sized screens.
Therefore, in mobile web design, developers need to consider how to set and control the viewport size to adapt to different mobile devices, and ensure that web content can be displayed and operated normally under various screen resolutions. This usually involves using responsive design techniques and media queries to accommodate different screen sizes and orientations.
Q: Generally speaking, what is the viewport width of a mobile phone?
Answer: The viewport width of the browser on the mobile phone is usually 240px~640px, which refers to the width of the vertical screen. Haohongjun tested it with the relevant bootstrap code, and found that the viewport width of Haohongjun’s mobile phone is less than 576px. The width of the viewport on the tablet is greater than or equal to 768px.