source/misc/embedded_libs/fmt-8.1.1/doc/bootstrap/mixins/background-variant.less
browsing at commit = 9f711750d1aead8d5cda23707d398d88fd67e51e
// Contextual backgrounds
.bg-variant(@color) {
background-color: @color;
a&:hover {
background-color: darken(@color, 10%);
}
}