Modified all generes for flipping card issue

[ashish-nagmoti]

Fixes #521

Describe the changes you've made

Modified all generes for flipping card issue

Checklist

• [x] I have mentioned related issue number in PR description.
• [ ] I have added screenshots and related demo links of my changes..
• [x] The title of my pull request is a short description of the requested changes.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
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