CSS Nesting is a native CSS feature (CSS Nesting Module Level 1) that lets you nest style rules within other rules.
Use the & symbol to reference the parent selector. Example:
.card {
background: #fff;
& .title { font-size: 1.2rem; }
&:hover { box-shadow: 0 2px 8px rgba(0,0,0,.1); }
}
π Note: CSS Nesting requires nested selectors to start with &, ., #, :, [, >, +, or ~.