font-weight
font-weight is a CSS property in the Typography category. Sets font family, size, weight, and typeface properties. The syntax is font-weight: normal | bold | bolder | lighter | <number> 100-900. Accepted values include 100-900 (100 thin, 400 normal, 700 bold, 900 black). How the values behave: 100-900 scale: 100 Thin, 300 Light, 400 Normal, 500 Medium, 600 Semi-Bold, 700 Bold, 900 Black. Not all weights may be available. A typical example: font-weight: 700; It is commonly applied to markup such as <div class="demo">Sample</div> Browser support: Chrome 1+, Firefox 1+, Safari 1+, Edge 12+. A close relative is font-family, which sets font family, size, weight, and typeface properties. A close relative is font-size, which sets font family, size, weight, and typeface properties. A close relative is font-style, which sets font family, size, weight, and typeface properties. More about this category: CSS typography properties for fonts, sizes, and text rendering.