1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
* { all: unset; border-color: red; } GtkButton { background-color: purple; border-style: none; border-width: 5px; border-radius: 15px; } #reference { border-style: solid; border-width: 0; border-radius: 15px; }