update reset styles

[afc163]

close #4331

A lot of changes. Reset styles is not global after 3.0, you have to import it individually.

---

Reverted the reset.less idea. It will be a break change. The solution would be:

• Remove annoying reset styles like margin:0;padding:0; for every tags.
• better typography to resolve Default typography of Ant Design is not so well #6162
• Remove some unneccessary reset styles like label in Form.

[codecov]

Codecov Report

Merging #7682 into antd-3.0 will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           antd-3.0   #7682   +/-   ##
========================================
  Coverage      82.1%   82.1%           
========================================
  Files           214     214           
  Lines          4453    4453           
  Branches       1342    1342           
========================================
  Hits           3656    3656           
  Misses          797     797

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f8c5849...4bd6d87. Read the comment docs.

[benjycui]

And this will be a breaking change which should be noted in upgrade instructions.

[afc163]

Make css usage complex...

[benjycui]

Remove annoying reset styles like margin:0;padding:0; for every tags.

But it will break current systems' styles.. which had depended on these reset rules..

[afc163]

I will document it in upgrade note.

[AleksandrZhukov]

@afc163 These changes make a lot of problems for using global css styles with the same specificity. For example it is impossible to set margin via global class that has same specificity .mb-10 { margin-bottom: 10px }

Is it possible to avoid of reseting such values?
Thanks in advance!