Css selector all elements with attribute

CSS selectors

The CSS selectors module defines the patterns to select elements to which a set of CSS rules are then applied along with their specificity . The CSS selectors module provides us with more than 60 selectors and five combinators. Other modules provide additional pseudo-class selectors and pseudo-elements.

In CSS, selectors are patterns used to match, or select, the elements you want to style. Selectors are also used in JavaScript to enable selecting the DOM nodes to return as a NodeList .

Selectors, whether used in CSS or JavaScript, enable targeting HTML elements based on their type, attributes, current states, and even position in the DOM. Combinators allow you to be more precise when selecting elements by enabling selecting elements based on their relationship to other elements.

Reference

Combinators and seperators

Selectors

Terms

• Pseudo-class glossary term
• Functional pseudo-classes
• Combinators
• Simple selector
• Compound selector
• Complex selector
• Relative selector
• Selector list
• Specificity

Guides

Overview of the different types of simple selectors and various combinators defined in the CSS selectors and the CSS pseudo modules.

Explanation of the structure of CSS selectors and the terminologies introduced in the CSS selectors module, ranging from «simple selector» to «forgiving relative selector list».

Lists the pseudo-classes, selectors that allow the selection of elements based on state information that is not contained in the document tree, defined in the various CSS modules and HTML.

Learn how to use the :target pseudo-class to style the target element a URL’s fragment identifier.

Learn the different UI pseudo-classes available for styling forms in different states.

The selectors API enables using selectors in JavaScript to retrieve element nodes from the DOM.

Related concepts

• :popover-open pseudo-class
• CSS scoping module
  • :host pseudo-class
  • :host() pseudo-class
  • :host-context() pseudo-class
  • ::slotted pseudo-element
  • ::after
  • ::before
  • ::file-selector-button
  • ::first-letter
  • ::first-line
  • ::grammar-error
  • ::marker
  • ::placeholder
  • ::selection
  • ::spelling-error
  • ::target-text
  • ::part pseudo-element
  • ::backdrop
  • ::cue
  • ::cue-region

  Specifications

  See also

  Found a content problem with this page?

  This page was last modified on Jul 21, 2023 by MDN contributors.

  Your blueprint for a better internet.

  Источник

  Understanding CSS Selectors: Attribute Selectors

  This type of attribute selector is used to select all the elements that have the specified attribute and applies the CSS property to that attribute.
  The example below selects every element with href attribute in the HTML file and colours it red:

  This type of attribute selector is used to select all the elements which have a specific attribute which has a value that is exactly the same as the specified value and applies the CSS property to that attribute.
  The example below selects every element with href=”#” attribute in the HTML file:

  This type of attribute selector is used to select all the elements that have the specified attribute which, in turn, has a value which is exactly the same as one of the values among a list of values separated by whitespace.
  The example below selects every element with class attribute containing a whitespace-separated list with the word dogs in the HTML file:

  The example above will match elements with class = “dogs” , class = “animals dogs” and class = “dogs animals” but not class = “dogs-animals” .

  This type of attribute selector is used to select any element which has the specified attribute whose value is exactly the same as the value or it is followed immediately by a hyphen.
  The example below selects every element with class attribute whose values begin with the word dogs or is followed by a hyphen(-), «dogs-purebred»:

  div[class|="dogs"] color: royal blue; > 

  This type of attribute selector is used to select any element which has the specified attribute whose value begins with the value that was specified in the selector. The value does not have to be the whole word or a whole word.
  The example below selects every element with a class attribute which has a value that begins with “seek”.

  div[class^="seek"] font-style: italic; > 

  This type of attribute selector is the opposite of the [attribute^=”value”] selector and is used to select any element whose specified attribute has a value which ends with the value specified in the selector.
  The example below selects every element with a class attribute which has a value that ends with “er”.

  div[class$="er"] font-style: oblique; > 

  This type of attribute selector is used to select elements whose attribute has the specified value in the selector anywhere in the attribute value in the HTML file.
  The example below selects every element that has a class attribute which contains “and” anywhere in the string which is the value of the attribute.

  div[class*="and"] font-weight: bold; > 

  This type of attribute selector is similar to any of the selectors that have already been mentioned with an added feature of adding an i or I just before the closing brackets which causes the value specified in the selector to be compared irrespective of its case i.e. it is not case-sensitive. This attribute selector is supported by all browsers except Internet Explorer.
  In the example below, all tags with href=”anon” will be selected regardless of capitalization. So, if the href value was Anon, aNon or anything else with the same letters but different capitalization, it would be valid.

  • [attribute operator value s] Selector This type of attribute selector is the opposite of the [attribute operator value i] selector in that it compares the value specified in the selector as regards to its exact case, i.e. it is case-sensitive. This attribute selector is however still in experimental stages and is not compatible with most browsers except with the current version of the Firefox Browser on Laptop and Mobile (Firefox 66.0). In the example below, all tags with exactly href*=”AnOn”.

  Why use Attribute Selectors?
  If you are a bit familiar with CSS and you may have looked at some CSS code of other people, you would come to notice that the use of attribute selectors is not really common. Many people who write CSS do not feel the need to use the attribute selectors arguing that the addition of another class or ID would just implement the same styling, but what this would go on to do is create a bogus CSS file with a lot of class or ID selectors which intention one would not be able to readily decipher from just looking at the codebase.
  One area where attribute selectors are very useful is in styling similar elements which have repeating attributes, let’s see the example below, we have an unordered list of anchor tags with similar href values but which have been differentiated by using the rel attribute.

  We can then go on style the list items based on the rel attrribute

  li a[rel="asean"] font-weight: bold; > li a[rel="ecowas"] font-style: italics; > 

  One tricky part is that if the rel attribute involved has more than one attribute value, the conventional way of styling an attribute won’t work but you’ll have to use the ‘~=’ combinator instead.

  With all of these, we have finally come to the end of this CSS series and I believe it was very beneficial to you. It means a lot to me that you read all the articles to the very end, I am very grateful. I believe this series handled the fundamentals for navigating CSS, with all the knowledge here, you can go to create magic with CSS.

  Источник

  CSS Selectors

  A CSS selector selects the HTML element(s) you want to style.

  CSS Selectors

  CSS selectors are used to «find» (or select) the HTML elements you want to style.

  We can divide CSS selectors into five categories:

  • Simple selectors (select elements based on name, id, class)
  • Combinator selectors (select elements based on a specific relationship between them)
  • Pseudo-class selectors (select elements based on a certain state)
  • Pseudo-elements selectors (select and style a part of an element)
  • Attribute selectors (select elements based on an attribute or attribute value)

  This page will explain the most basic CSS selectors.

  The CSS element Selector

  The element selector selects HTML elements based on the element name.

  Example

  Here, all

  elements on the page will be center-aligned, with a red text color:

  The CSS id Selector

  The id selector uses the id attribute of an HTML element to select a specific element.

  The id of an element is unique within a page, so the id selector is used to select one unique element!

  To select an element with a specific id, write a hash (#) character, followed by the id of the element.

  Example

  The CSS rule below will be applied to the HTML element with

  Note: An id name cannot start with a number!

  The CSS class Selector

  The class selector selects HTML elements with a specific class attribute.

  To select elements with a specific class, write a period (.) character, followed by the class name.

  Example

  In this example all HTML elements with will be red and center-aligned:

  You can also specify that only specific HTML elements should be affected by a class.

  Example

  In this example only

  elements with will be red and center-aligned:

  HTML elements can also refer to more than one class.

  Example

  In this example the

  element will be styled according to and to

  This paragraph refers to two classes.

  Note: A class name cannot start with a number!

  The CSS Universal Selector

  The universal selector (*) selects all HTML elements on the page.

  Example

  The CSS rule below will affect every HTML element on the page:

  The CSS Grouping Selector

  The grouping selector selects all the HTML elements with the same style definitions.

  Look at the following CSS code (the h1, h2, and p elements have the same style definitions):

  h2 text-align: center;
  color: red;
  >

  p text-align: center;
  color: red;
  >

  It will be better to group the selectors, to minimize the code.

  To group selectors, separate each selector with a comma.

  Example

  In this example we have grouped the selectors from the code above:

  All CSS Simple Selectors

  Selector	Example	Example description
  #id	#firstname	Selects the element with >
  .class	.intro	Selects all elements with >
  element.class	p.intro	Selects only elements with >
  *	*	Selects all elements
  element	p	Selects all elements
  element,element.	div, p	Selects all elements and all elements

  Источник