Slider: "ant-slider-mark-text" have unexpected width.

[nybardic]

Reproduction link

https://ng-zorro-antd-start-21q9wb.stackblitz.io

Steps to reproduce

Step 1: Click the vertical slider's mark: "70°C" ;

What is expected?

When we click the silder's mark on it, it should change the value on itself.

What is actually happening?

You will find that, the vertical slider doesn't happen any change, and horizontal slider is changed.

Environment	Info
ng-zorro-antd	8.1.0
Browser	Chrome 5.0.3770.142

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In fact, it is because the class: ".ant-slider-mark-text" have too much width :90% of the div's width. So it will influence other fields, and casue user interaction issue.
Wish to optimization the width setting of the ".ant-slider-mark-text". Thanks!

[nybardic]

Here is the detail of the element : ".ant-slider-mark-text" width.