"Personal space"—the distance an object wants to keep from other objects. box-sizing: border-box;
To write CSS with confidence, you must first respect the "C" in CSS: . CSS Demystified Start writing CSS with confidence
Instead of fighting the cascade by adding more specific selectors, learn to embrace it. Use low-specificity classes for your base styles and layer more specific classes only when necessary. If you find yourself reaching for !important , it is usually a sign that your CSS architecture needs a rethink, not that the browser is being difficult. The Box Model "Personal space"—the distance an object wants to keep
: Best for one-dimensional layouts (a single row or column), such as navigation bars or centering elements. To write CSS with confidence
/* Tablet and up */ @media (min-width: 768px) .card flex-direction: row;