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SVGs

Scalable Vector Graphics (SVG) offer a way to create resolution-independent vector graphics that look crisp at any size or resolution.

Ways to Use SVGs in CSS​

  1. Background Images: SVGs can be set as background images for HTML elements.

    .element {
      background-image: url('image.svg');
    }

  2. Inline Styles: SVG code can be directly embedded in CSS using data URIs.

    .element {
      background-image: url('data:image/svg+xml,<svg>...</svg>');
    }

  3. CSS Masking: SVGs can be used as masks to create complex shapes and effects.

    .element {
      mask: url('mask.svg');
    }

  4. CSS Clipping: SVGs can be used as clip paths to clip the visible portion of elements.

    .element {
      clip-path: url('clip.svg');
    }

  5. Icon Fonts: SVGs can be used to create custom icon fonts that are styled using CSS.

  6. Pseudo-elements: SVGs can be inserted using CSS pseudo-elements like ::before and ::after.

    .element::before {
      content: url('icon.svg');
    }

Best Practices​

  1. Optimization: Always use optimized SVG files to ensure quick loading times and better performance.

  2. Accessibility: Use aria-label or aria-labelledby attributes in SVG elements for screen readers.

  3. Fallbacks: Provide fallbacks for older browsers that may not fully support SVGs.

  4. Styling: SVGs can be styled and manipulated using CSS when they are inline, offering greater flexibility.

  5. Responsive Design: SVGs are inherently scalable, making them ideal for responsive design.

  6. Cross-Browser Compatibility: Test SVG rendering across different browsers to ensure a consistent experience.

  7. Semantic Use: Use SVGs for icons, logos, and other UI elements where scalability and customization are required.

Examples​

SVG as Background Image​

.element {
  background-image: url('icon.svg');
  background-size: cover;
}

Inline SVG with CSS Styling​

<svg class="icon">
  <circle class="icon-circle" cx="50" cy="50" r="10" />
</svg>
.icon-circle {
  fill: blue;
  stroke: black;
  stroke-width: 2;
}

SVG in Pseudo-element​

.element::before {
  content: url('icon.svg');
  margin-right: 8px;
}