在Yii2高级模板中创建持久的CSS和JS

I've been developed a project using Yii2 framework, and I've modifid the CSS and JS from backend\web\assets\12qwer34. But when I clone the project into new directory project, the new one project didn't use the same CSS and JS from backend\web\assets\12qwer34, it's uses CSS and JS from another directory.

Any one knows how to make the CSS and JS become persistent?

Files under directory backend\web\assets are generated from original .css files.

In backend\assets\ you have AppAsset.php file where you can add your custom css files by setting property:

public $css = ['styles/yourstyles.css'];

And then add a file called yourstyles.css in backend\web\styles\.