How fine to see a site with a PC simulation of the phone?

The website, through check for adaptability, it looks perfect, I go with mobile telephones and somehow does not look as on the website to check. MB someone explain to me how using a browser to watch so that was 100% mobile screen?
June 8th 19 at 16:43
2 answers
June 8th 19 at 16:45
100% can only give the emulator inside the SDK
Emulation in Chrome DevTools
June 8th 19 at 16:47
if you really dig deep, then here it is:

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