nkm nkm -3 years ago 160
CSS Question

What does '&.' in '&.sub-title' indicates in scss?

I am a newbie to CSS and SCSS.

In the following code,

.title {
width: 718px;
&.sub-title {
width: 938px;

What does &. means? Is it same as nesting class?

Answer Source

The & concatenates the parent class, resulting in .title.sub-title (rather than .title .sub-title if the & is omitted).

The result is that with the & it matches an element with both title and sub-title classes:

<div class='title sub-title'></div> <!-- << match -->

whilst without the & it would match a descendent with class sub-title of an element with class title:

<div class='title'>
    <div class='sub-title'></div> <!-- << match -->
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