Most used properties Layout and Position display: block; display: flex; display: grid; position: relative; position: absolute; width: 100%; height: 50px; margin: 10px 20px; padding: 15px; float: left; clear: both; Text and Typography font-family: "Arial", sans-serif; font-size: 16px; font-weight: bold; line-height: 1.5; text-align: center; color: #333; text-decoration: none; letter-spacing: 1px; Color and Background background-color: #f0f0f0; background-image: url("image.png"); background-position: center; background-size: cover; border: 1px solid #ccc; Box model box-sizing: border-box; border-radius: 10px; Flexbox (for Layout) flex-direction: row; justify-content: space-between; align-items: center; flex-wrap: wrap; Grid (for Layout) grid-template-columns: repeat(3, 1fr); grid-template-rows: auto 1fr; grid-gap: 10px; Transition and Animation transition: all 0.3s ease; animation: slide 1s forwards; Responsive Design @media (max-width: 768px) { /* Styles for mobile */ }