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Images draw users in and bring color and life to your pages. Designers and developers use images to display logos, avatars, photographs, illustrations, charts, and more.
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<img src="img/vr-space.jpg" alt="User experiencing space in VR" title="Virtual reality users can explore faraway places and feel as though they are right in the middle of the action.">
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Images draw users in and
bring color and life to your pages.
0:00
Designers and
developers use images to display logos,
0:04
avatars, photographs,
illustrations, charts, and more.
0:07
Browsers support several image formats and
0:10
the most common ones you'll use are JPEG,
GIF, PNG, and SVG.
0:13
You can learn more about these image
formats in the teacher's notes
0:17
for this video.
0:20
And the JPEG format we're using in our
project is commonly used to display
0:20
imagery or photographs that contain
great detail in many different colors.
0:26
Now to keep your files organized, it's
best to place images in a separate folder.
0:31
So let's go over to File,
New Folder to create a new folder, and
0:37
we'll name this folder img or image.
0:42
Now drag all three image
files into the image folder
0:45
Next let's add the featured.jpg
image to our page
0:56
by including it inside the intro
div here in index.html.
1:01
So the image element represents
an image in the document, so
1:07
let's add an image tag
above the paragraph.
1:11
Now the image element is considered
an empty element, meaning it
1:14
does not contain any child content and
it doesn't have a separate closing tag.
1:19
And the image tag requires
a source attribute,
1:24
and source lets the browser
know the location of the image.
1:27
So the value needs to be the path to
the image you want to display and
1:31
featured.jpg is located
inside the image folder.
1:35
So as the value for source, we'll type
the relative URL img/featured.jpg
1:39
Now image elements need to provide
the browser a text description of
1:52
the image via the alt attribute.
1:57
The alt attribute is an important
accessibility attribute that displays
1:59
replacement or alternative text to
users when an image is not available.
2:04
So for example, if the image URL is wrong
or if the image format is not supported by
2:08
the browser or
if the image is not yet downloaded.
2:13
And some users also disable images in
the browser to save on download costs.
2:15
So adding alternative text for
2:20
images is required to make your
site more accessible to users.
2:22
It's a best practice.
2:26
In addition users with visual impairments
use assistive technologies like screen
2:27
readers to read webpages to them,
2:32
and the contents of the alt attribute is
read by these technologies to users.
2:34
So it's important to write alternative
text that describes the contents of
2:39
the image and
that helps describe the image to users.
2:43
So for example, I'll set the alt text of
my featured image to Virtual reality user.
2:46
You can learn more about tips for
writing good and
2:55
meaningful alt texts in
the teacher's notes of this video.
2:57
So now, let's add an image to
the about section of our page.
3:01
So we'll include an image tag
right below the about paragraph,
3:05
and let's set the source
attribute to the path
3:13
img/vr-space.jpg. Now we'll
give the image some alt text.
3:18
So I'll add an alt attribute, and set
the text to user experiencing space in VR.
3:26
Now by default,
3:41
the image element displays an image using
the inherent dimensions of the image file.
3:42
So for example,
featured.jpg is 300 by 300 pixels and
3:47
vrspace.jpg is 500 pixels by 327 pixels.
3:54
Now if you wanna add additional
information about an image to your users,
3:59
you can include a title
attribute inside the image tag.
4:03
So for instance, right after
the alt text for the about image,
4:08
we'll add a title attribute and
inside add the text,
4:12
Virtual reality users can
explore faraway places
4:15
and feel as though they are right
in the middle of the action.
4:26
So we'll give this a save, refresh
the browser, and you'll see that most
4:36
browsers present this information to
the user when they hover over the image.
4:41
And this is refer to as a tool tip.
4:45
All right, so now that you've
had practice with file paths and
4:49
adding images into the page,
why don't you include the vr-user.jpg
4:52
image inside the article file
in the 2017 sub-folder here?
4:59
And you can see how I added
the image in the next video.
5:03
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