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CSS Reference

CSS Reference CSS Selectors CSS Reference Aural CSS Web Safe Fonts CSS Units CSS Colors CSS Color Values CSS Color Names CSS Color HEX CSS3 Browser Support

CSS Properties

align-content align-items align-self 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-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-shadow box-sizing caption-side clear clip 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 flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-size font-size-adjust font-stretch font-style font-variant font-weight hanging-punctuation height icon 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 min-height min-width nav-down nav-index nav-left nav-right nav-up 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 position quotes resize right tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line 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 vertical-align visibility white-space width word-break word-spacing word-wrap z-index

CSS Selector Reference


Note W3Schools' CSS reference is tested regularly with all major browsers.


CSS Selectors

In CSS, selectors are patterns used to select the element(s) you want to style.

Use our CSS Selector Tester to demonstrate the different selectors.

The "CSS" column indicates in which CSS version the property is defined (CSS1, CSS2, or CSS3).

Selector Example Example description CSS
.class .intro Selects all elements with class="intro" 1
#id #firstname Selects the element with id="firstname" 1
* * Selects all elements 2
element p Selects all <p> elements 1
element,element div,p Selects all <div> elements and all <p> elements 1
element element div p Selects all <p> elements inside <div> elements 1
element>element div>p Selects all <p> elements where the parent is a <div> element 2
element+element div+p Selects all <p> elements that are placed immediately after <div> elements 2
element1~element2 p~ul Selects every <ul> element that are preceded by a <p> element 3
[attribute] [target] Selects all elements with a target attribute 2
[attribute=value] [target=_blank] Selects all elements with target="_blank" 2
[attribute~=value] [title~=flower] Selects all elements with a title attribute containing the word "flower" 2
[attribute|=value] [lang|=en] Selects all elements with a lang attribute value starting with "en" 2
[attribute^=value] a[src^="https"] Selects every <a> element whose src attribute value begins with "https" 3
[attribute$=value] a[src$=".pdf"] Selects every <a> element whose src attribute value ends with ".pdf" 3
[attribute*=value] a[src*="w3schools"] Selects every <a> element whose src attribute value contains the substring "w3schools" 3
:active a:active Selects the active link 1
:after p:after Insert content after every <p> element 2
:before p:before Insert content before  the content of every <p> element 2
:checked input:checked Selects every checked <input> element 3
:disabled input:disabled Selects every disabled <input> element 3
:empty p:empty Selects every <p> element that has no children (including text nodes) 3
:enabled input:enabled Selects every enabled <input> element 3
:first-child p:first-child Selects every <p> element that is the first child of its parent 2
:first-letter p:first-letter Selects the first letter of every <p> element 1
:first-line p:first-line Selects the first line of every <p> element 1
:first-of-type p:first-of-type Selects every <p> element that is the first <p> element of its parent 3
:focus input:focus Selects the input element which has focus 2
:hover a:hover Selects links on mouse over 1
:in-range input:in-range Selects input elements with a value within a specified range 3
:invalid input:invalid Selects all input elemets with an invalid value 3
:lang(language) p:lang(it) Selects every <p> element with a lang attribute equal to "it" (Italian) 2
:last-child p:last-child Selects every <p> element that is the last child of its parent 3
:last-of-type p:last-of-type Selects every <p> element that is the last <p> element of its parent 3
:link a:link Selects all unvisited links 1
:not(selector) :not(p) Selects every element that is not a <p> element 3
:nth-child(n) p:nth-child(2) Selects every <p> element that is the second child of its parent 3
:nth-last-child(n) p:nth-last-child(2) Selects every <p> element that is the second child of its parent, counting from the last child 3
:nth-last-of-type(n) p:nth-last-of-type(2) Selects every <p> element that is the second <p> element of its parent, counting from the last child 3
:nth-of-type(n) p:nth-of-type(2) Selects every <p> element that is the second <p> element of its parent 3
:only-of-type p:only-of-type Selects every <p> element that is the only <p> element of its parent 3
:only-child p:only-child Selects every <p> element that is the only child of its parent 3
:optional input:optional Selects input elements with no "required" attribute 3
:out-of-range input:out-of-range Selects input elements with a value outside a specified range 3
:read-only input:read-only Selects input elements with the "readonly" attribute specified 3
:read-write input:read-write Selects input elements with the "readonly" attribute NOT specified 3
:required input:required Selects input elements with the "required" attribute specified 3
:root :root Selects the document's root element 3
::selection ::selection Selects the portion of an element that is selected by a user  
:target #news:target Selects the current active #news element (clicked on a URL containing that anchor name) 3
:valid input:valid Selects all input elemets with a valid value 3
:visited a:visited Selects all visited links 1



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