Do not use fonts smaller than 12px

I am not able to tell something surely about this with confidence, but possibly the unique UI locales and their relevant character sets were formed for 12px and more than this. In case the so-call dilemma continues to be left unsettled then possibly it is suggested to be doing work with font-sizes of no below 12px. You must remember that:

• It must become an important consideration for professional designers to confirm their final design is both accessible and aesthetically pleasing.
• With the growing resolution size of mobile devices and monitors possibly keeping to the rule of 12px is advantageous for us and our users.