How Do CSS \'and\' (&&) and \'or\' (||) Operators Affect Element Selection?

Understanding CSS "and" and "or" Operators

When styling web elements, it may be necessary to exempt certain types of elements from the styling. For instance, an input field may need to be excluded from styling, while checkboxes should also be exempted.

Using "and"

The "and" operator (&&) in CSS allows for combining multiple selectors, effectively narrowing down the selection criteria. For example:

.registration_form_right input:not([type="radio"]) && input:not([type="checkbox"])
{
 //Nah.
}

This selector will apply the styling to all input elements within .registration_form_right except those that are of type "radio" or "checkbox." The "&&" operator ensures that both conditions are met for an element to be selected.

Using "or"

The "or" operator (||) separates multiple selectors. If any one of the selectors matches an element, that element will be selected. For instance:

.registration_form_right input[type="text"] || .registration_form_right input[type="email"]
{
 //Nah.
}

Here, the styling will be applied to both text and email input elements. The "||" operator specifies that either condition (type="text" or type="email") is sufficient for an element to be included.

Practical Examples

• To exclude radio buttons and checkboxes from a styling block:

  input:not([type="radio" && type="checkbox"])

• To style elements that are either disabled or have a specific class:

  element:disabled || .specific-class

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