This and the parent comment confuse me.<p>It&#x27;s not the nesting in the SASS that&#x27;s the problem per se, its the fact that it makes it easy to create the kind of code that you list that&#x27;s the problem.<p>Modern good practice suggests a single classname for each item, so you&#x27;re not fighting with specificity too much.<p>The original &quot;bad&quot; example doesn&#x27;t even do that, its just using :before and :after etc. not nested selectors.