In the html-css file, some styles are not called. Is there any tool to delete this part of the content that is not called?

Question

for example:

html Content:

<p class="a"></p>

In the css file:

.a{color:#f00}
.b{color:#f00}

There is no tool or plug-in (vscode, sublime text supports replacement), automatically or manually delete the line .b{color:#f00} in css?

I remember that a long, long, long time ago, Microsoft had Expression Web 4, which was a tool that could compete with DreamViewer, but that was all many years ago. Don't consider it.

Answer 1

Webstorm code review, if there are no references, there will be a prompt, but you have to handle it manually