1. Sass: A preprocessor that allows you to write nested, modular, and reusable CSS. It also has features like variables, mixins, and functions that make writing CSS easier and more efficient.

Code Example:

$primary-color: #333;
$secondary-color: #666;

.button {
  background-color: $primary-color;
  color: #fff;
}

.box {
  background-color: $secondary-color;
  color: #fff;
}

Website: sass-lang.com

1. PostCSS: A tool that allows you to transform your CSS with JavaScript plugins. It can be used to do things like autoprefixing, minification, and cross-browser compatibility.

Code Example:

/* PostCSS configuration file */
module.exports = {
  plugins: [
    require('autoprefixer'),
    require('cssnano')
  ]
};

Website: postcss.org

1. CSS Grid Generator: A web-based tool that allows you to generate custom CSS grid code for your layouts.

Code Example:

.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 100px 200px 100px;
  gap: 20px;
}

.item {
  background-color: #eee;
  padding: 20px;
}

Website: cssgrid-generator.netlify.app

1. CSS Gradient Generator: A web-based tool that allows you to generate custom CSS gradients with ease.

Code Example:

.background {
  background: linear-gradient(to bottom right, #ff9966, #ff5e62);
}

Website: cssgradient.io

1. ColorZilla: A browser extension that includes an eyedropper tool for picking colors, a color picker, a CSS gradient generator, and more.

Website: colorzilla.com

1. CSS3 Generator: A web-based tool that allows you to generate CSS3 code for things like shadows, border radius, and text effects.

Code Example:

.box {
  box-shadow: 2px 2px 5px #999;
  border-radius: 10px;
  text-shadow: 1px 1px #ccc;
}

Website: css3gen.com

1. Bootstrap: A popular CSS framework that includes a grid system, pre-built UI components, and responsive design features.

Code Example:

<div class="container">
  <div class="row">
    <div class="col-md-6">
      <p>This is a left column.</p>
    </div>
    <div class="col-md-6">
      <p>This is a right column.</p>
    </div>
  </div>
</div>

Website: getbootstrap.com

1. Animate.css: A library of pre-built CSS animations that you can easily add to your website or web application.

Code Example:

<div class="animated bounceIn">
  <p>This element will bounce in when it appears on the screen.</p>
</div>

Website: animate.style

1. Flexbox Froggy: A game that teaches you how to use CSS Flexbox by solving puzzles.

Website: flexboxfroggy.com

1. CanIUse: A website that allows you to check the browser compatibility of various CSS properties and features.

Website: caniuse.com

📌Consider using these tools and websites to enhance your CSS coding and make it faster and more efficient...!!