Icon button style is broken in version 9

[sasensi]

Reproduction link

https://stackblitz.com/edit/ng-zorro-antd-button-v9-0-0-beta-3

Steps to reproduce

Create button with an icon but no text.

What is expected?

The button should be a square.

What is actually happening?

The button is a rectangle.

Environment	Info
ng-zorro-antd	9.0.0-beta.3
Browser	Chrome 80

---

The bug occurs with the new beta version and Angular 9.
This worked as expected with latest stable version (8.5.1) and Angular 8: https://stackblitz.com/edit/ng-zorro-antd-button-v8-5-1

[vthinkxie]

https://stackblitz.com/edit/ng-zorro-antd-button-v9-0-0-beta-3-uhmta9?file=src/app/app.component.html

[sasensi]

@vthinkxie, your project shows a circular icon button, what I am talking about is the square icon button.

[vthinkxie]

ng-zorro-antd v9 follow the antd v4 design spec, you can modify the less to customize the theme if you want.

[sasensi]

Oh, ok, I don't really know how this spec works.
What I did is pick the example from the documentation:

So does this mean that this type of button won't no longer be available in v9 ?

[vthinkxie]

sorry for misunderstanding your repo
we will add this type back soon.