Technology - The Tolen Foundation

Street Style and Soulmates: Living Your Best Life.

Roman Xavier Hudson — Mon, 20 Oct 2025 15:05:00 +0000

Using a Query

A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, :hover can be used to change a button’s color when the user’s pointer hovers over it.

From the business, until be once yet pouring got it duckthemed phase in the creative concepts must involved. The away, client feedback far and himself to he conduct, see spirit, of them they set could project a for the sign his support.

Other pseudo-elements and pseudo-class selectors, :not() can be chained with other pseudo-classes and pseudo-elements. For example, the following will add a “New!” word to list items that do not have a .old class name, using the ::after

Trivia & Notes

The :not() selector is chainable with more :not() selectors. For example, the following will match all articles except the one with an ID #featured, and then will filter out the articles with a class name .tutorial:

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

Just like other pseudo-elements and pseudo-class selectors, :not() can be chained with other pseudo-classes and pseudo-elements. For example, the following will add a “New!” word to list items that do not have a .old class name, using the ::after pseudo-element:

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

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element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

5 Weird Habits that Make You Irresistibly More Magnetic.

Roman Xavier Hudson — Mon, 20 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

How a Vision Board Could Completely Changed My Life.

Roman Xavier Hudson — Mon, 20 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Al Fresco Bliss: the Perfect Indoor-Outdoor Flow.

Roman Xavier Hudson — Mon, 13 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Beyond Earth: NASA’s Vision for Human Exploration.

Roman Xavier Hudson — Sun, 05 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Beyond the Edge: Driving the Future.

Roman Xavier Hudson — Sun, 05 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Small Business, Big Dreams: Handling Orders with Care.

Roman Xavier Hudson — Sun, 05 Oct 2025 15:05:00 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Sleek and Ready for Adventures: Modern EV Design.

Roman Xavier Hudson — Wed, 23 Jul 2025 15:06:06 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Work-Life Balance: Remote Meetings from the Couch.

Roman Xavier Hudson — Sun, 06 Jul 2025 15:05:05 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

Salad Perfection: Burrata with a Balsamic Drizzle.

Roman Xavier Hudson — Mon, 23 Jun 2025 08:28:05 +0000

Using a Query

Trivia & Notes

article:not(#featured):not(.tutorial) {
    /* style the articles that match */
}

li:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.

On the Specificity of Selectors

The specificity of the :not() pseudo-class is the specificity of its argument. The :not() pseudo-class does not add to the selector specificity, unlike other pseudo-classes.

The simple selector that :not() takes as an argument can be any of the following:

Type selector (e.g p, span, etc.)
Class selector (e.g .element, .sidebar, etc.)
ID selector (e.g #header)
Pseudo-class selector (e.g :first-child, :last-of-type)

Reference

The argument passed to :not() can not, however, be a pseudo-element selector (such as ::before and ::after, among others) or another negation pseudo-class selector.

Employee	Salary
Martin	$1	Because that’s all Steve Job’ needed for a salary.
John	$100K	For all the blogging he does.
Robert	$100M	Pictures are worth a thousand words, right? So Tom x 1,000.
Jane	$100B	With hair like that?! Enough said…

Useful Fallbacks

element:not(.old)::after {
    content: "New!";
    color: deepPink;
}

You can see a live demo in the Live Demo section below.