Ways to modify the focus hue of a react-bootstrap form input file?

I've been using react-bootstrap to style my elements, but I'm having trouble changing the focus color of my input type file. It always shows the default blueish border when focused. Despite trying various approaches like targeting input[type="file"]:focus in css and similar methods, nothing seems to work.

Here is how my form field looks, incorporating Formik which explains the functions like setFieldValue:

<Form.File id="imageToUpload" name="imageToUpload" type="file" custom onBlur={handleBlur}>
      <Form.File.Input
        accept=".jpg, .jpeg, .png"
        onChange={e => {
          setFieldTouched('image', true);
          setFieldValue('image', e.currentTarget.files[0]);
          setFilename(e.currentTarget.files[0].name);
        }}
        isInvalid={touched.image === true && errors.image !== undefined}
        isValid={touched.image === true && errors.image === undefined}
      />
      <Form.File.Label data-browse={t('common-image-selector-button-text')}>
        {filename}
      </Form.File.Label>
    </Form.File>

It's worth noting that in my css stylesheet, I have the following snippet:

.form-control:focus{
  border-color: #a3c4bc;
  box-shadow: 0 0 0 0.1rem #8ebdb1;
}

This styling works perfectly for all other form fields except for file types.

If anyone has any suggestions or solutions, I would greatly appreciate it. Thank you in advance!

Answer №1

There are a couple of ways you can change or remove the color of an input when it is in focus:

  1. If you want to override the focus properties of react-bootstrap, you can use the !important CSS rule, although this is not recommended.
/* -- modify form control boostrap style -- */
.form-control:focus{
  border-color: #a3c4bc !important;
  box-shadow: 0 0 0 0.1rem #8ebdb1 !important;
}
  1. A better approach is to use an id selector to target the specific input field.
/* -- delete form control bootstrap style -- */
#my-form-id .form-control:focus{
  border: none;
  box-shadow: none;
  background-color: transparent;
}

Answer №2

Sorry for the delay, but I recently encountered a similar issue as well.

I have been using React-Bootstrap without Formik. However, I found a workaround by utilizing the css pseudo-element '::file-selector-button'. Link: https://developer.mozilla.org/en-US/docs/Web/CSS/::file-selector-button

input::file-selector-button {
  background-color: black;
  color: white;
}

You can also include user interactive classes like 'pseudo-class' such as :focus, :hover, and so on in the attribute, resulting in the following css:

input::file-selector-button:hover {
  color:#007bff
} 

For more information on pseudo-classes, visit: https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes

I hope this solution proves helpful.

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