Resizing the container div to perfectly fit the displayed React component

Is there a way to render a component with its style and position defined by specific cases without having to create a container that takes up the entire body? I want the styles of the container to match those of the component, without the need for the container to occupy the whole body.

Here is the code snippet:


var componentStyle;
//cases
componentStyle = {}; //some css properties
var MyComponent = React.createClass({
    render: function(){
        return(
            <div style = {componentStyle}>Some content</div>
        )
    }
})
var container = document.createElement("div");
container.id = "container";
document.body.appendChild(container);
ReactDOM.render(<MyComponent/>,container);

Here is the CSS for the container:


#container {
    position: absolute;
    top:0;left: 0;
    font-family: Arial, Helvetica, sans;
    background: transparent;
    height: 100%;
    width: 100%;
    z-index:9999999;
}

Answer №1

This issue seems to be related more to CSS than to React.

If you want the container to not take up the entire body, you can simply remove the width: 100% property in your CSS. Assuming your DOM structure looks like this:

<body>
  <div id="container">
     <Children />
  </div>
</body>

To make the container occupy just the component, you can use the following CSS:

#container {
  display: table;
}

Alternatively, you can use:

(which will add extra margin by default)

#container {
  display: inline-block;
}

Another option only available in CSS3 is:

#container {
  width: fit-content; 
  /* Adjust the height as well */ 
  height: fit-content;
}

Yet another CSS3 option is:

#container {
  width: intrinsic;
}

For more information, you can visit this link

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