The sequence of styles components is essential

After observing that the styled-Component/Wrapper method outlined below can sometimes result in the Child component's CSS being overridden by its parent, I developed a simplified example:

Here is the Parent component and its corresponding Styled-Component Wrapper:

 import styled from "styled-components";

const Child = () => {
  return (
    <ChildWrapper>
      <div className="nice-box" />
    </ChildWrapper>
  );
};
const Parent = () => {
  return (
    <ParentWrapper>
      <div className="nice-box" />
      <Child />
    </ParentWrapper>
  );
};

const ChildWrapper = styled.div`
  .nice-box {
    border: 3px solid green;
    height: 100px;
    width: 100px;
  }
`;

const ParentWrapper = styled.div`
  .nice-box {
    border: 3px solid black;
    height: 50px;
    width: 50px;
  }
`;

export default Parent;

However, it was discovered that if the "ChildWrapper" is placed after "ParentWrapper", the child component will have its own unique style!

So, the question arises - how can we prevent the parent's style from affecting the child?

Answer №1

While this question may be considered old, a potential solution to the issue at hand could involve utilizing the "direct child" selector (>):

const ChildWrapper = styled.div`
  > .nice-box {
    border: 3px solid green;
    height: 100px;
    width: 100px;
  }
`;

const ParentWrapper = styled.div`
  > .nice-box {
    border: 3px solid black;
    height: 50px;
    width: 50px;
  }
`;

In implementing this approach, the sequence of the styled components should not have a significant impact.

Answer №2

To ensure the desired outcome, include &&& (for increased specificity) in the nice-box class of ChildWrapper to prevent any unwanted styling overrides

const ChildWrapper = styled.div`
  &&& .nice-box {
    border: 3px solid green;
    height: 100px;
    width: 100px;
  }
`;

Here is a sample code that works - https://codesandbox.io/s/kind-blackwell-gk6tfx?file=/src/Child.js

For more information, refer to the official documentation link - https://styled-components.com/docs/faqs#how-can-i-override-styles-with-higher-specificity

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