First, we would want to create a skeleton UI of the application, and then we can create a store, connect the UI to the store, make the app more functional, and add CSS styling. The Main component will create two components, namely, DetailsSection and PostsSection.

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In our final product, the DetailsSection and PostsSection will be as follows:

We will create very basic versions of DetailsSection and PostsSection, which we will improve later. The code should be something like this.

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With the above code, our app should look like this:

We need the DetailsSection and PostsSection shown in the form of two columns, for that, we will create a grid using CSS. Create a new index.css file in the src folder and write the code for creating a grid inside the #main element.

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We can import the CSS files using the JS import statements in index.js:

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Now the app should be looking something like this: