I created a small component , with some CSS.
1.CSS was created at component/clientlib/less/x.less level
2. And then this file name was added in css.txt
3. And an x component group was added.
4. Navigated to structure page customheaderlibs.html and noticed that it is referring to clientlib-base
5. Navigated to clientlibs folder and added my component x in the embed.
When i deployed my code changes and navigated to my page which uses this component, in the network tab under clientlib-base.css i dont see my component less css .
I am using AEM 6.5 service pack 6.5.4 . Not sure what else needs to be verified .