CSS-advanced.md

Advanced CSS Topics

Table of Contents

1. CSS Animations
2. CSS Transitions
3. Pseudo-classes
4. CSS Variables
5. Responsive Design
6. Further Reading

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CSS Animations

CSS animations make it possible to animate transitions from one CSS style to another.

@keyframes my-animation {
  from {
    background-color: red;
  }
  to {
    background-color: yellow;
  }
}

.animate {
  animation: my-animation 4s infinite;
}

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CSS Transitions

Transitions provide a way to control animation speed when changing CSS properties.

.transition {
  transition: background-color 0.5s ease;
}

.transition:hover {
  background-color: green;
}

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Pseudo-classes

Pseudo-classes are used to define the special state of an element.

/* Hover state */
a:hover {
  color: red;
}

/* First child of a parent */
p:first-child {
  font-weight: bold;
}

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CSS Variables

CSS variables, also known as custom properties, allow you to store reusable values.

:root {
  --main-color: blue;
}

.element {
  background-color: var(--main-color);
}

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Responsive Design

Responsive design aims to make websites look good on all devices.

/* Mobile-first approach */
@media only screen and (min-width: 600px) {
  .container {
    width: 80%;
  }
}

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Further Reading

Ready to dive deeper? Check out these free resources:

• Mozilla Developer Network's Advanced CSS Guide
• W3Schools Advanced CSS Tutorial
• CSS-Tricks

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