How can i use css pseudo elements styling inside react jsx to pass variables
In React, you can use CSS pseudo-elements with variables by using the styled
component from styled-components
library. Here's an example:
import styled from 'styled-components';
const Container = styled.div`
position: relative;
&::after {
content: '${props => props.message}';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: ${props => props.color};
opacity: 0.5;
}
`;
function MyComponent() {
return (
<Container message="Hello World!" color="#ff0000">
<p>This is a paragraph of text.</p>
</Container>
);
}
In this example, we define a Container
component using the styled
component from styled-components
. We use the &::after
pseudo-element to style the container's after pseudo-element.
We pass two props to the Container
component: message
and color
. We use the props
object to access these props inside the CSS styles.
In the CSS styles, we use template literals to insert the values of the message
and color
props. The ${props => props.message}
syntax is called a "template literal" and allows us to insert the value of the message
prop into the CSS styles.
When we render the MyComponent
component, we pass the message
and color
props to the Container
component:
function MyComponent() {
return (
<Container message="Hello World!" color="#ff0000">
<p>This is a paragraph of text.</p>
</Container>
);
}
The resulting HTML will have the ::after
pseudo-element styled with the values of the message
and color
props:
<div style="position: relative;">
<p>This is a paragraph of text.</p>
<div style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: #ff0000; opacity: 0.5;">
Hello World!
</div>
</div>
Note that the styled
component from styled-components
is a powerful tool that allows you to write CSS styles as JavaScript code. It's a great way to manage your CSS styles in a React application.