source/misc/embedded_libs/fmt-8.1.1/doc/bootstrap/mixins/background-variant.less
browsing at commit = 9c062c1d02217e23b24943be7f55a77905d9fe50
// Contextual backgrounds
.bg-variant(@color) {
background-color: @color;
a&:hover {
background-color: darken(@color, 10%);
}
}