Preventing background style from taking precedence over backgroundColor style in React's inline styling

Question

Preventing background style from taking precedence over backgroundColor style in React's inline styling

What causes background to take precedence over backgroundColor in React inline-style?

In this scenario, the lack of a specified green background-color results in the background gradient with transparency transitioning into white rather than green within the transparent areas.

How can I prevent this behavior and make the transparency effective?

class App extends React.Component {
  render() {
    return (
      <div style={{backgroundColor:"green", background: "radial-gradient(100% 100% at 0px 0px, rgb(230, 100, 101), transparent)"}}>
      </div>
    );
  }
}

// Render it
ReactDOM.render(
  <App />,
  document.getElementById("react")
);

div {
  width: 200px;
  height: 200px;
}

<div id="react"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

The issue is resolved by setting the CSS externally, but it needs to function in React's inline style for dynamic applicability.

javascript css reactjs

Answer 1

Answer №1

When multiple css rules target the same property, the last one takes precedence over all previous ones, resulting in only the radial gradient rule being visible. Fortunately, combining different backgrounds is achievable by chaining all background definitions together:

background: background1, background2, ..., backgroundn

To display both backgrounds in your example, the modified code snippet below illustrates how to achieve this:

class App extends React.Component {
  render() {
    return (
      <div style={{background: "radial-gradient(100% 100% at 0px 0px, rgb(230, 100, 101), transparent), green"}}>
      </div>
    );
  }
}

// Render it
ReactDOM.render(
  <App />,
  document.getElementById("react")
);

div {
  width: 200px;
  height: 200px;
}

<div id="react"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

Answer 2

When multiple css rules target the same property, the last one takes precedence over all previous ones, resulting in only the radial gradient rule being visible. Fortunately, combining different backgrounds is achievable by chaining all background definitions together:

background: background1, background2, ..., backgroundn

To display both backgrounds in your example, the modified code snippet below illustrates how to achieve this:

class App extends React.Component {
  render() {
    return (
      <div style={{background: "radial-gradient(100% 100% at 0px 0px, rgb(230, 100, 101), transparent), green"}}>
      </div>
    );
  }
}

// Render it
ReactDOM.render(
  <App />,
  document.getElementById("react")
);

div {
  width: 200px;
  height: 200px;
}

<div id="react"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

Answer 3

Answer №2

Include the green attribute in your gradient within the background property, and remove the backgroundColor entirely:

class App extends React.Component {
  render() {
    return (
      <div style={{background: "radial-gradient(100% 100% at 0px 0px, rgb(230, 100, 101), green)"}}>
      </div>
    );
  }
}

// Render it
ReactDOM.render(
  <App />,
  document.getElementById("react")
);

div {
  width: 200px;
  height: 200px;
}

<div id="react"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

Answer 4

Include the green attribute in your gradient within the background property, and remove the backgroundColor entirely:

class App extends React.Component {
  render() {
    return (
      <div style={{background: "radial-gradient(100% 100% at 0px 0px, rgb(230, 100, 101), green)"}}>
      </div>
    );
  }
}

// Render it
ReactDOM.render(
  <App />,
  document.getElementById("react")
);

div {
  width: 200px;
  height: 200px;
}

<div id="react"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

Preventing background style from taking precedence over backgroundColor style in React's inline styling

Answer №1

Answer №2

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