docs/quick-start/jenkinsfile-out-of-scm, click the buttons but no response: "Add nesting steps" and so on

Created by: TikWind

General remarks docs/quick-start/jenkinsfile-out-of-scm, click the buttons but no response: "Add nesting steps" and so on.

Describe the bug I follow the steps: https://kubesphere.io/docs/quick-start/jenkinsfile-out-of-scm/#stage-ii-unit-test

In this step:"4.2.2. Click Add Step and select container, name it maven, then click OK.", it is no response after I click the buttons:"Add nesting steps", "Add conditions", "Add step" and the icon button.

And it doesn't send any request.

So, why? What's up?

Versions used(KubeSphere/Kubernetes) KubeSphere: 2.1.1

Environment 1 masters: 12cpu/64g 2 nodes: 12cpu/32g