Tuesday, 11 July, 2023 UTC
Summary
While working on the example of inverting colors in a picture with Javascript I've realized that adding CSS styling on upload buttons is not that easy.
Until I discovered the
::file-selector-button pseudo-element.This pseudo element applies to the HTML inputs of the type file:
input[type="file"]::file-selector-button {
/* styles here */
} As a shorthand you actually don’t even need to specify the file input element in front of the pseudo-element:
/* both syntaxes work the same */
input[type="file"]::file-selector-button { }
::file-selector-button { }Below is the code for a simple example of styling an input type file upload button with CSS:
::file-selector-button {
background: orangered;
color: white;
border: 1px solid orangered;
border-radius: 5px;
padding: 1rem 3rem;
}One related question is how can we style the whole widget block of the upload button.
This can be done by using the initial selector of selector
input[type="file"]. It will target the whole widget block, that is the button and the text. So, adding the below CSS:
input[type=file] {
border: 1px solid orangered;
color: orangered;
padding: 1rem;
border-radius: 5px;
font-family: "Comic Sans MS", "Comic Sans", cursive;
font-size: 120%;
text-transform: lowercase;
}Will produce this output:
Extra resources and links
You can check out the codepend for this example.
And if you want if you want to see a more complex demo of what is possible with
::file-selector-button take a look here. Cool stuff 💪 !Also, you can check out the official documentation here. And, the support is great, being now available in all browsers.
Happy styling!
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