College of Chemistry and Molecular Engineering

Golden Wedding Celebrated at PKU

Study

School of Earth and Space Sciences

Office of the President

Cooperation Exchange

School of Mathematical Sciences

Research

College of Urban and Environmental Sciences

Countdown to Graduation

Users must be able to magnify the contents of a web page by up to 200%. In modern 
browsers this is almost always possible unless the page chooses to disable it.

Websites should avoid using the meta viewport tag to disable pinch-to-zoom. This behavior
is highly discouraged for accessibility and usability on mobile devices.

Generally the code causing this issue looks like this:

```html
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
```

Here the use of `user-scaleable=no` asks the browser not to allow user zoom. 

iOS no longer allows websites to disable pinch-to-zoom, and ignores this part of the
viewport tag. Therefore to replicate this issue you must use an Android device.

ensure-text-can-resize

July 2025

June 2025

Peking University

Title / URL	Issues
College of Chemistry and Molecular Engineeringenglish.pku.edu.cn/curriculum/11308.html	1
Golden Wedding Celebrated at PKUenglish.pku.edu.cn/detail/13699.html	1
Studyenglish.pku.edu.cn/admissions.html	1
School of Earth and Space Sciencesenglish.pku.edu.cn/curriculum/11305.html	1
Office of the Presidentenglish.pku.edu.cn/detail/11807.html	1
Cooperation Exchangeenglish.pku.edu.cn/collaboration.html	1
School of Mathematical Sciencesenglish.pku.edu.cn/curriculum/11310.html	1
Researchenglish.pku.edu.cn/research.html	1
College of Urban and Environmental Sciencesenglish.pku.edu.cn/curriculum/11306.html	1
Countdown to Graduationenglish.pku.edu.cn/detail/14290.html	1

Ensure pinch-to-zoom is enabled

Peking University

Where this issue has occurred