Post Formats in WordPress Themes — a practical guide to WordPress post formats with clear examples you can reuse in real projects.
WordPress Theme Development Series (35/96). Prefer one article? Read the complete WordPress theme development tutorial.
Short description
Post formats are optional. Only enable formats you actually style.
Add support
add_theme_support('post-formats', ['video', 'quote', 'gallery']);
if (has_post_format('quote')) {
// quote layout
}