MUI v5 : Can you explain how to incorporate CSS classes into components using the className prop? And is it possible to utilize the theme within those classes as well

In MUI version 5, how can one pass CSS classes to components using the className prop and also incorporate theme in those classes? I attempted to achieve this using styled-components in MUI v5, however it seems that while we can target specific classes using styled-components, we are unable to directly pass those classes to the component.

Answer №1

Begin by importing the CSS file into your component. After that, you can use it in this manner:

<div className={the name of the imported class}>

Answer №2

To achieve this, one approach is to set the css class using a sx property within a parent component, as shown in the following code snippet:

function Child({ message, className }) {
  return <Typography className={className}>{message}</Typography>;
}

function Parent() {
  return (
    <Box
      sx={{
        '.childClass': {
          color: 'primary.main'
        }
      }}
    >
      <Child message="Child with no css class defined" />

      <Child className="childClass" message="Child with css class defined" />
    </Box>
  );
}

In this scenario, 'primary.main' translates to theme.palette.primary.main, as explained here.

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