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The general prohibition sign , also known as a no symbol, no sign, circle-backslash symbol, nay, interdictory circle or universal no, is a red circle with a red diagonal line through it. No entry sign
Businessman using a laptop with check mark and cross icons, symbolizing decision making, approval process, evaluation, quality control, and business choice. yes or no concept
Empty Modern Classroom with Computers and Art Display.
Raster restriction sign forbiding any thing
A clear safety sign on a white table in a busy indoor public space, reminding visitors do not to eat or drink. The sign is framed and features a red prohibition circle.

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