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align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-repeat background-size border border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-width border-left border-left-color border-left-style border-left-width border-radius border-right border-right-color border-right-style border-right-width border-spacing border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-decoration-break box-shadow box-sizing break-after break-before break-inside caption-side caret-color @charset clear clip clip-path color column-count column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns content counter-increment counter-reset cursor direction display empty-cells filter flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-feature-settings font-kerning font-size font-size-adjust font-stretch font-style font-variant font-variant-caps font-weight gap grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-gap grid-column-start grid-gap grid-row grid-row-end grid-row-gap grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens @import isolation justify-content @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-bottom margin-left margin-right margin-top max-height max-width @media min-height min-width mix-blend-mode object-fit object-position opacity order outline outline-color outline-offset outline-style outline-width overflow overflow-x overflow-y padding padding-bottom padding-left padding-right padding-top page-break-after page-break-before page-break-inside perspective perspective-origin pointer-events position quotes resize right row-gap scroll-behavior tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-indent text-justify text-overflow text-shadow text-transform top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function unicode-bidi user-select vertical-align visibility white-space width word-break word-spacing word-wrap writing-mode z-index



CSS font-weight Property


Example

Set different font weight for three paragraphs:

p.normal {
  font-weight: normal;
}

p.thick {
  font-weight: bold;
}

p.thicker {
  font-weight: 900;
}
Try it Yourself »

Definition and Usage

The font-weight property sets how thick or thin characters in text should be displayed.

Default value: normal
Inherited: yes
Animatable: yes. Read about animatable Try it
Version: CSS1
JavaScript syntax: object.style.fontWeight="bold" Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
font-weight 2.0 4.0 1.0 1.3 3.5


CSS Syntax

font-weight: normal|bold|bolder|lighter|number|initial|inherit;

Property Values

Value Description Play it
normal Defines normal characters. This is default Play it »
bold Defines thick characters Play it »
bolder Defines thicker characters Play it »
lighter Defines lighter characters Play it »
100
200
300
400
500
600
700
800
900
Defines from thin to thick characters. 400 is the same as normal, and 700 is the same as bold Play it »
initial Sets this property to its default value. Read about initial Play it »
inherit Inherits this property from its parent element. Read about inherit

Related Pages

CSS tutorial: CSS Font

CSS reference: font property

HTML DOM reference: fontWeight property