:hover style is applied to button's label instead of button in gtk4 css

Question

I have a css file like this in a gtk4 application. I am expecting the GtkButton to change its color when the mouse hovered over it.

headerbar button {
    border-radius: 20px;
    border-style: none;
    border: solid 1px red;
    background-color: transparent;
    color: skyblue;
}

headerbar button :hover {
    border: solid 1px lightgreen;
    color: magenta;
}

However, the result I get is:
The button will allways have a red border. And the properties I set in button :hover is applied to button's label instead

The blue square is my button :hover css properties. Did I do something wrong?

I removed the space before :hover and it works now. Thank you — Eric Nien
– Eric Nien, Commented Jul 14 at 10:42

NickSlash · Accepted Answer · 2025-07-14 10:46:55Z

0

Assuming gtk CSS is just regular CSS, you can't have a space between the selector and the pseudo-class (and have it work as you expect).

button:hover is hover for the button class

button :hover is hover for children of button.

answered Jul 14 at 10:46

NickSlash

5,1954 gold badges25 silver badges41 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

:hover style is applied to button's label instead of button in gtk4 css

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related