Whether the mobile site is built like a traditional website

is mobile site production the same as a traditional website?
Smartphones now have direct access to the website via a browser, as well as to the computer. Because of the screen size, the browser is inconvenient.

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The previous corporate website was made using Html+php+mysql.
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Is it okay to replace the template?
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Basic technology is the same
You know the difference from the point of view of being a mobile user.

The difference between the front end is still very big
1. Screen size
2. Traffic (This is money for the user)
3. Visual/operating area, touch screen operation area is not too small, twenty or thirty pixels of the area is difficult to accurately click
4. Convenient operation, mobile phones are almost "single-tasking", a screen to do a few things more difficult, complex jump is also unreasonable
......
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The main is JS and CSS and the full use of HTML5.
Program and make PC website no difference

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