The basic selectors of CSS are used to match elements in HTML documents, including: type selector (matching element name); class selector (matching class name); ID selector (matching ID); descendant selector (matches descendant elements within ancestor elements); child element selector (matches direct child elements); adjacent sibling selector (matches directly adjacent sibling elements); universal sibling selector (matches all sibling elements); attribute selector (matches elements with the specified attribute).
Basic selectors in CSS
Basic selectors in CSS are used to match elements in an HTML document. By using these selectors, you can specify styles for specific elements.
Type selector
-
#element
: Matches all elements with the specified element name, such asp
means all paragraphs.
Class selector
-
.class-name
: Matches all elements with the specified class name, such as.example
represents all elements with classexample
.
ID selector
-
#id-name
: Matches a single element with the specified ID, such as#header
represents an element with the IDheader
.
Descendant selector
-
ancestor descendant
: Matches descendant elements located within ancestor elements, such asul li
represents allli
elements located within theul
element.
Child element selector
- ##parent > child
: Matches child elements that are direct children of the parent element, For example,
div > pmeans all
pelements directly located within the
divelement.
Adjacent sibling selector
- element adjacent
: Match adjacent elements that appear directly after the specified element, For example,
p h2means all
h2elements directly following the
pelement.
Universal sibling selector
- element ~ sibling
: Matches all sibling elements that appear after the specified element, including Adjacent elements and further elements, for example
h1 ~ pmeans all
pelements that follow the
h1element.
Attribute selector
- [attribute]
: Match elements with specified attributes, such as
[href ]represents all elements with the
hrefattribute.
- [attribute=value]
: Matches elements with the specified attribute and with the specified value, for example
[href="example.com"]means all
hrefElement with attribute value "example.com".
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