styling the border-radius property in react
use borderradius
css properties to style border-radius of elements in react, e.g.
borderbottomleftradius
e.g.const app = () => {
return (
<div><divstyle={{border: '1pxsolidred', borderradius: '30px'}}>
some content here
div><br /><divstyle={{border: '1pxdashedred', borderradius: '25% 10%'}}>
some content here
div><br /><divstyle={{border: '1pxsolidrgba(0,255,0,0.3)',
borderradius: '10% 30% 50% 70%',
}}
>
some content here
div><br /><divstyle={{border: '2pxdottedred', borderradius: '10% / 50%'}}>
some content here
div><br /><divstyle={{border: '2pxsolidred',
borderbottomleftradius: '30px',
borderbottomrightradius: '30px',
}}
>
some content here
div>div>
);
};
export default app;
border-radius
these examples show how to style css properties
of elements in react .
请注意
, we have toborderradius
wrap the value of the attribute in a string.
border: '1px solid red', borderradius: '30px'}}>
some content here
</div>
if the border-radius style isn't updated, we might be overriding it somewhere else in our code.
we can try setting the style to !important
.
style={{border: '2px solid red'}}
ref={el => {
if (el) {
el.style.setproperty('border-radius', '25% 10%', 'important');
}
}}
>
hello world
</div>
the function we pass to ref prop
will be called with the element, so we can programmatically set its properties toimportant
.
if we need to set border-radius for only specific borders, use camelcase property names - borderbottomleftradius
, , borderbottomrightradius
etc.
style={{
border: '2px solid red',
borderbottomleftradius: '30px',
borderbottomrightradius: '30px',
}}
>
some content here
</div>
in the code we pass to reactstyle
property, multi-word property names are camelcase.
alternatively, we can write the styles into a file with a .css extension.
.red-rounded-border {
border: 1px solid red;
border-radius: 30px;
}
here is how we will import and use the red rounded border class.
import './app.css';
const app = () => {
return (
<div><divclassname="red-rounded-border">some content herediv>div>
);
};
export default app;
when importing global css files in react, the best practice is to import the css file into
index.js
a .js file.
index.js file is the entry point of your react application, so it will always run.
on the other hand, if we import a css file into a component, the css styles may be removed once our component unmounts.
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