user-select cannot be selected by the user

Table of contents

background

field properties

 Notice

 the case

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background

There is such a wonderful requirement in the project, that is, specific fields are not allowed to be copied by users, and cannot be selected. The most common application scenario of this kind is the examination system or something. Candidates are not allowed to copy and search for questions, which is disgusting !

field properties

 Notice

One of the differences between browser implementations is the inheritance of

 the case