- :nth-child 8:00
- :nth-of-type 4:30
- :nth Pseudo-Class Challenge 2 objectives
- :nth Pseudo-Class Challenge - Pt. 2 1 objective
- :root and :target 5:12
- :not() – The Negation Pseudo-Class 4:46
- Pseudo-Elements - ::first-line and ::first-letter 5:00
- Pseudo-Elements - ::before and ::after 8:13
- The attr() CSS Function 6:32
- Pseudo-Elements Challenge 4 objectives
- Advanced Selectors Review 6 questions
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Pseudo-Elements - ::first-line and ::first-letter
5:00The ::first-line and ::first-letter pseudo-elements let us target the first line of text and the first character in a line of text.
Pseudo-elements are similar to
pseudo-classes, but
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instead of describing a state, like
pseudo-classes do,
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pseudo-elements style certain parts of an
element.
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And they can insert elements and content,
into our page, from our CSS.
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Pseudo-elements are exactly what their
name implies.
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They are phony elements that are not part
of the DOM,
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the way real HTML elements are.
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And they can help keep our HTML cleaner,
because they target virtual elements that
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are not defined in the markup, and they
don't appear in the source code.
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Now, there are four types of
pseudo-elements in CSS.
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So, let's begin by taking a look at the
first line, and
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first letter pseudo-elements.
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Since text in paragraphs is usually fluid
on most sites, selecting and
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formatting the first rendered line of
text, would not be possible with class or
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ID selectors, because the line width
varies so much.
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So, this is where the first line
pseudo-element, will sort of work its
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magic, by targeting and styling the first
rendered line of text, in a paragraph.
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No matter how narrow, or how wide, the
line of text.
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So, back in our latest workspace, let's
scroll down to the first paragraph.
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And even though the first line of this
intro paragraph,
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does not have any HTML tags around it,
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as we can see here in the markup, we're
still able to select it and style it.
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So, let's go over to our CSS directory,
and open up the style.css file.
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And we're gonna create our pseudo-element
selector, by first targeting
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the class intro, followed by a colon, then
we're gonna type, first-line.
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[BLANK_AUDIO]
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And we're going to give that first
rendered line of text,
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a font weight property, and we're gonna
set the value to bold, and
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we're also gonna increase the font size.
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So, let's set the font-size value to 1.4em.
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All right?
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So, once we save our style sheets, and
refresh the browser,
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notice how this selects the first line of
the intro paragraph, and
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it styles it with those styles we
declared.
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And if we resize the viewport, we can see
how the first line pseudo-element,
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will always select the first line of text
rendered by the browser,
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no matter the line width.
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While the first line pseudo-element
identifies the first line of
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text within an element, we can also use
the first letter pseudo-element,
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to identify the first letter of text,
within an element.
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So, first letter will actually target the
very first character,
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of the first line of text.
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And it's commonly used for creating
typographical effects like drop caps,
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where the first letter on the paragraph is
enlarged, to drop down two or more lines.
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And this makes the letter stand out from
the rest of the paragraph.
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So, let's see how we're able to select and
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style that first letter of our paragraph,
with the first letter pseudo-element.
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So, right below the first line rule, we'll
again target the intro class.
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And this time we're gonna write, colon,
first-letter.
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[BLANK_AUDIO]
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So, let's add a few CSS properties to
style the first letter.
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Let's first float it left.
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An d we're going to change the font size.
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Let's set the value to 80 pixels, and
let's change the color value to white.
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Let's also give it some padding.
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So, let's make the padding value, five
pixels, ten pixels.
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Right below that, let's change the
background color,
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with a background property.
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And we're gonna make it a hex value of
pound 384047.
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Let's also give it some margins.
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So, we'll add a margin property.
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And let's set the top margin to ten
pixels, the right margin to ten pixels,
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and then, bottom zero, left zero.
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All right, two more properties.
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Let's give it a nice border radius, so,
we'll add a border-radius property, and
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let's set it to five pixels, and finally
let's change the line height.
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So, let's add a line height property, and
set it to one.
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Right?
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So, let's take a look at our awesome drop
cap.
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We'll save our style sheet.
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And once we refresh the page, we see those
new styles applied to the very
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first letter of our paragraph, so now it
looks like a drop cap, cool.
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So, before we continue,
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sometimes we might see pseudo-elements
that use double colons, instead of one.
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Now, the double colon is simply used to
distinguish between pseudo-classes, and
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pseudo-elements, since pseudo-classes use
one colon.
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But browsers will still support both
values, and
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they will work exactly the same way.
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So, moving forward, we're going to stick
with the double colon syntax.
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[BLANK_AUDIO]
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