CSS social buttons

Implemented purely in CSS, making buttons fast and eliminating the need for JS libraries, as highlighted in the key features for performance and simplicity.

Icons are rendered as fonts, ensuring they remain sharp at any size or screen resolution, per the project description, which solves pixelation issues common with image-based buttons.

Uses simple class-based structure like '.zocial.facebook' on any HTML element, reducing code complexity and easing setup, as shown in the usage examples.

Employs private Unicode spaces for icons to maintain screen reader compatibility, addressing accessibility concerns mentioned in the browser support section.