[Bug]: Some tailwind responsive class was purge unexpected since version 7

[quanghien95]

Describe the bug

Hello,
After upgrade to Purge css version 7 , I notice that some tailwind class was removed after purgecss running

purgecss.config.js

module.exports = {
    defaultExtractor: (content) => content.match(/[\w\-:.&\/\(),'[#%!*\]]+(?<!:)/g) || []
};

Example HTML

<nav class="navigation hidden lg:block w-full order-10"></nav>

Example CSS input

.lg\:block {
  display: block;
}

/* Reset some default browser styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Body Styles */
body {
  font-family: 'Arial', sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

/* Container for content */
.container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Headings */
h1, h2, h3 {
  margin-bottom: 15px;
  color: #007BFF; /* Bootstrap primary color */
}

h1 {
  font-size: 2.5em; /* 40px */
}

h2 {
  font-size: 2em; /* 32px */
}

h3 {
  font-size: 1.5em; /* 24px */
}

/* Links */
a {
  color: #007BFF;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 10px 20px;
  background-color: #007BFF; 
  color: #ffffff;
  border: none;
  border-radius: 5px;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.button:hover {
  background-color: #0056b3; /* Darker shade */
}

/* Example Card */
.card {
  border: 1px solid #e2e2e2;
  border-radius: 5px;
  padding: 15px;
  margin: 10px 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 1.25em;
  margin-bottom: 10px;
}

.card-content {
  font-size: 1em;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .container {
      padding: 10px;
  }

  h1 {
      font-size: 2em;
  }

  h2 {
      font-size: 1.5em;
  }

  .button {
      padding: 8px 16px;
  }
}

Purgecss v6:

.lg\:block {
  display: block;
}

/* Reset some default browser styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

Purgecss v7

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

I already tried add \\ to extractor but no luck

Any idea. ?

To Reproduce

Please copy the HTML and CSS from the example above.
Then, run PurgeCSS and note that it remove wrong CSS.

Expected Behavior

Working like purge css v6

Environment

purgecss: 7.0.2

Add any other context about the problem here

No response

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