Webview is not rendering CSS properly in Android KitKat - Ionic 4 - ionic-framework

I have created a working application using Ionic 4 which works fine in those mobile which contain Android Lollipop but when I run the same application in Android KitKat, the CSS is not rendering properly in webview. I have gone through every solution out there but those examples are useful if you are creating application in android native. I am new to Ionic. Need help regarding this issue.

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Ionic's Cordova is essentially opening a webview from the native app. That means the rendering engine is different on every device. For example, on the latest devices, Android uses webkit, and iOS uses WkWebView. That's where you have to be careful. Some styling like css-animation behaves differently.
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