CSS Selectors
In CSS, selectors are patterns used to select the element(s) you want to style.
The "CSS" column indicates in which CSS version the property is defined (CSS1 or CSS2).
| 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 |
| [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|=language] | [lang|=en] | Selects all elements with a lang attribute value starting with "en" | 2 |
| :link | a:link | Selects all unvisited links | 1 |
| :visited | a:visited | Selects all visited links | 1 |
| :active | a:active | Selects the active link | 1 |
| :hover | a:hover | Selects links on mouse over | 1 |
| :focus | input:focus | Selects the input element which has focus | 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-child | p:first-child | Selects every <p> elements that is the first child of its parent | 2 |
| :before | p:before | Insert content before every <p> element | 2 |
| :after | p:after | Insert content after every <p> element | 2 |
| :lang(language) | p:lang(it) | Selects every <p> element with a lang attribute value starting with "it" | 2 |
CSS Properties
CSS Property Groups
- Background
- Border and outline
- Dimension
- Font
| - Generated content
- List
- Margin
- Padding
| - Positioning
- Print
- Table
- Text
|
The "CSS" column indicates in which CSS version the property is defined (CSS1 or CSS2).
| Property | Description | CSS |
| background | Sets all the background properties in one declaration | 1 |
| background-attachment | Sets whether a background image is fixed or scrolls with the rest of the page | 1 |
| background-color | Sets the background color of an element | 1 |
| background-image | Sets the background image for an element | 1 |
| background-position | Sets the starting position of a background image | 1 |
| background-repeat | Sets how a background image will be repeated | 1 |
| Property | Description | CSS |
| border | Sets all the border properties in one declaration | 1 |
| border-bottom | Sets all the bottom border properties in one declaration | 1 |
| border-bottom-color | Sets the color of the bottom border | 1 |
| border-bottom-style | Sets the style of the bottom border | 1 |
| border-bottom-width | Sets the width of the bottom border | 1 |
| border-color | Sets the color of the four borders | 1 |
| border-left | Sets all the left border properties in one declaration | 1 |
| border-left-color | Sets the color of the left border | 1 |
| border-left-style | Sets the style of the left border | 1 |
| border-left-width | Sets the width of the left border | 1 |
| border-right | Sets all the right border properties in one declaration | 1 |
| border-right-color | Sets the color of the right border | 1 |
| border-right-style | Sets the style of the right border | 1 |
| border-right-width | Sets the width of the right border | 1 |
| border-style | Sets the style of the four borders | 1 |
| border-top | Sets all the top border properties in one declaration | 1 |
| border-top-color | Sets the color of the top border | 1 |
| border-top-style | Sets the style of the top border | 1 |
| border-top-width | Sets the width of the top border | 1 |
| border-width | Sets the width of the four borders | 1 |
| outline | Sets all the outline properties in one declaration | 2 |
| outline-color | Sets the color of an outline | 2 |
| outline-style | Sets the style of an outline | 2 |
| outline-width | Sets the width of an outline | 2 |
| Property | Description | CSS |
| height | Sets the height of an element | 1 |
| max-height | Sets the maximum height of an element | 2 |
| max-width | Sets the maximum width of an element | 2 |
| min-height | Sets the minimum height of an element | 2 |
| min-width | Sets the minimum width of an element | 2 |
| width | Sets the width of an element | 1 |
| Property | Description | CSS |
| font | Sets all the font properties in one declaration | 1 |
| font-family | Specifies the font family for text | 1 |
| font-size | Specifies the font size of text | 1 |
| font-style | Specifies the font style for text | 1 |
| font-variant | Specifies whether or not a text should be displayed in a small-caps font | 1 |
| font-weight | Specifies the weight of a font | 1 |
| Property | Description | CSS |
| content | Used with the :before and :after pseudo-elements, to insert generated content | 2 |
| counter-increment | Increments one or more counters | 2 |
| counter-reset | Creates or resets one or more counters | 2 |
| quotes | Sets the type of quotation marks for embedded quotations | 2 |
| Property | Description | CSS |
| list-style | Sets all the properties for a list in one declaration | 1 |
| list-style-image | Specifies an image as the list-item marker | 1 |
| list-style-position | Specifies if the list-item markers should appear inside or outside the content flow | 1 |
| list-style-type | Specifies the type of list-item marker | 1 |
| Property | Description | CSS |
| margin | Sets all the margin properties in one declaration | 1 |
| margin-bottom | Sets the bottom margin of an element | 1 |
| margin-left | Sets the left margin of an element | 1 |
| margin-right | Sets the right margin of an element | 1 |
| margin-top | Sets the top margin of an element | 1 |
| Property | Description | CSS |
| padding | Sets all the padding properties in one declaration | 1 |
| padding-bottom | Sets the bottom padding of an element | 1 |
| padding-left | Sets the left padding of an element | 1 |
| padding-right | Sets the right padding of an element | 1 |
| padding-top | Sets the top padding of an element | 1 |
| Property | Description | CSS |
| bottom | Sets the bottom margin edge for a positioned box | 2 |
| clear | Specifies which sides of an element where other floating elements are not allowed | 1 |
| clip | Clips an absolutely positioned element | 2 |
| cursor | Specifies the type of cursor to be displayed | 2 |
| display | Specifies the type of box an element should generate | 1 |
| float | Specifies whether or not a box should float | 1 |
| left | Sets the left margin edge for a positioned box | 2 |
| overflow | Specifies what happens if content overflows an element's box | 2 |
| position | Specifies the type of positioning for an element | 2 |
| right | Sets the right margin edge for a positioned box | 2 |
| top | Sets the top margin edge for a positioned box | 2 |
| visibility | Specifies whether or not an element is visible | 2 |
| z-index | Sets the stack order of an element | 2 |
| Property | Description | CSS |
| orphans | Sets the minimum number of lines that must be left at the bottom of a page when a page break occurs inside an element | 2 |
| page-break-after | Sets the page-breaking behavior after an element | 2 |
| page-break-before | Sets the page-breaking behavior before an element | 2 |
| page-break-inside | Sets the page-breaking behavior inside an element | 2 |
| widows | Sets the minimum number of lines that must be left at the top of a page when a page break occurs inside an element | 2 |
| Property | Description | CSS |
| border-collapse | Specifies whether or not table borders should be collapsed | 2 |
| border-spacing | Specifies the distance between the borders of adjacent cells | 2 |
| caption-side | Specifies the placement of a table caption | 2 |
| empty-cells | Specifies whether or not to display borders and background on empty cells in a table | 2 |
| table-layout | Sets the layout algorithm to be used for a table | 2 |
| Property | Description | CSS |
| color | Sets the color of text | 1 |
| direction | Specifies the text direction/writing direction | 2 |
| letter-spacing | Increases or decreases the space between characters in a text | 1 |
| line-height | Sets the line height | 1 |
| text-align | Specifies the horizontal alignment of text | 1 |
| text-decoration | Specifies the decoration added to text | 1 |
| text-indent | Specifies the indentation of the first line in a text-block | 1 |
| text-shadow | Specifies the shadow effect added to text | 2 |
| text-transform | Controls the capitalization of text | 1 |
| unicode-bidi |
| 2 |
| vertical-align | Sets the vertical alignment of an element | 1 |
| white-space | Specifies how white-space inside an element is handled | 1 |
| word-spacing | Increases or decreases the space between words in a text | 1 |
