Namespaces in LESS

It may be that you have two different mixins with the same name, but located in different blocks:

styles.less#block1 {
  .button {
    border: 1px solid black;
  }
}
#block2 {
  .button {
    width: 100px;
  }
}

In this case, these mixins are said to belong to different namespaces. To use such a mixin, in addition to its name, you also need to specify the parent block selector.

Let's use the first mixin:

styles.less.test {
  #block1 > .button;
}

And now the second one:

styles.less.test {
  #block2 > .button;
}

styles.less#block1 {
  .mix {
    width: 100px;
  }
}
#block2 {
  .mix { 
    height: 200px;
  }
}

.test {
  #block1 > .mix;
  #block2 > .mix;
}