text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
And the Alt text that
I'll use in this case | 1,151.57 | 2.4 |
is just going to be the
word cat, for example. | 1,153.97 | 3.45 |
And that's all I need. | 1,157.42 | 1.05 |
Now, notice in particular
there's something a little bit | 1,158.47 | 2.34 |
different about this image
tag compared to other tags | 1,160.81 | 2.94 |
that we've seen before in the sense
that it doesn't have a closing | 1,163.75 | 3.36 |
tag in the sense that the body had
a beginning of the body and an end | 1,167.11 | 3.58 |
to the body, our ordered list had
a beginning of the ordered list | 1,170.69 | 2.9 |
and the end of the unordered
list with list items in between. | 1,173.59 | 2.82 |
It doesn't really make
sense for an image, | 1,176.41 | 2.97 |
for example, to have the
beginning of the image | 1,179.38 | 2.07 |
and the end of the
image and some content | 1,181.45 | 1.8 |
in between, because the image is just
a single HTML element that can't really | 1,183.25 | 4.68 |
have anything inside of it. | 1,187.93 | 1.86 |
So in that sense, we don't
actually need a closing image tag. | 1,189.79 | 3.21 |
The image tag is self-closing. | 1,193 | 1.93 |
It is its own beginning and end. | 1,194.93 | 1.88 |
So we can just say we
want an image to be here | 1,196.81 | 2.79 |
that is cat.jpeg with an alternative
text of just the word cat, for example. | 1,199.6 | 6.1 |
So now, if I open up
image.html, we'll see | 1,205.7 | 3.41 |
that what gets loaded is quite
large, a picture of a cat. | 1,209.11 | 3.69 |
And I can scroll around
and see this entire image. | 1,212.8 | 2.97 |
Of course, this picture of a cat is
probably larger than I wanted it to be. | 1,215.77 | 3.19 |
I probably, when I my
user visits this web page, | 1,218.96 | 2.05 |
I don't want them to have to
scroll all the way to the right | 1,221.01 | 2.5 |
in order to see the entire cat. | 1,223.51 | 1.77 |
So I can actually add
additional HTML attributes | 1,225.28 | 3.15 |
in order to modify the size of
the image that I'm displaying. | 1,228.43 | 3.03 |
And later we'll see we can use
CSS to do a similar thing as well. | 1,231.46 | 3.52 |
But for now, what I can add
is an additional attribute | 1,234.98 | 3.23 |
and say that let me give
cat.jpeg, this image tag, | 1,238.21 | 3.3 |
another attribute that, in this
case, I'll just call width. | 1,241.51 | 3.21 |
And I'll say that width is
going to be equal to 300, | 1,244.72 | 3.15 |
because I would like for this image
to be 300 pixels wide, for example. | 1,247.87 | 4.96 |
So now, if I refresh
this page, I now see | 1,252.83 | 2.3 |
that the same cat image
appears, except now it | 1,255.13 | 2.4 |
appears at 300 pixels wide exactly. | 1,257.53 | 2.73 |
So I'm able to add additional
attributes, additional information | 1,260.26 | 3.69 |
to control how an HTML
element is going to appear. | 1,263.95 | 3.17 |
In this case, I want
to control its width, | 1,267.12 | 1.75 |
and it automatically
scales down the height | 1,268.87 | 1.92 |
to make sure that the image
is proportional as well. | 1,270.79 | 3.68 |
Now, on the internet, in addition
to just displaying information | 1,274.47 | 2.88 |
on a single page, it's also common
for a page to link to other pages. | 1,277.35 | 4.21 |
In fact, that's one of
the main important values | 1,281.56 | 2 |
of the internet is the
ability to go from one page | 1,283.56 | 2.34 |
to another via these links. | 1,285.9 | 2.19 |
And so one thing we might
reasonably want to do | 1,288.09 | 2.28 |
is add some links to our page,
where if you click on something, | 1,290.37 | 2.82 |
you're taken to another page altogether. | 1,293.19 | 2.73 |
So let's take a look
at an example of that. | 1,295.92 | 2.71 |
I'll create a new file
based on hello.html. | 1,298.63 | 2.96 |
And I'll add lang equals
English for good measure. | 1,301.59 | 2.42 |
And I'll call this new file
link.html, where here, we're | 1,304.01 | 4.24 |
going to practice with building
some links into our HTML page. | 1,308.25 | 4.1 |
I'll copy the content of
hello.html again, call this link. | 1,312.35 | 5.58 |
In order to create a link,
I'm going to use a tag | 1,317.93 | 2.48 |
called the a tag, short
for the anchor tag. | 1,320.41 | 3.57 |
And the a tag takes one
important attribute, | 1,323.98 | 2.79 |
which is called href, for
hyperlink reference, which | 1,326.77 | 3.69 |
is going to specify what
page I would like to link to. | 1,330.46 | 3.82 |
So if, for example, I wanted
when a user clicks on this link | 1,334.28 | 2.81 |
to go to google.com, then
I'd set the href attribute | 1,337.09 | 3.69 |
of this tag equal to
HTTPS://google.com, for example. | 1,340.78 | 7.04 |
Then inside of the a tag, I would
specify what text I want to display. | 1,347.82 | 4.83 |
What text should the user see such
that when the user clicks on that text | 1,352.65 | 3.81 |
they're taken to the web page? | 1,356.46 | 1.6 |
In this case, I'm just going to
say something like, Click here, | 1,358.06 | 3.62 |
for instance. | 1,361.68 | 2.03 |
Now, if I open up a link.html,
this is what the user sees. | 1,363.71 | 5.46 |
They see a blue link
that says Click here. | 1,369.17 | 2.28 |
And when the user does
click on that link, | 1,371.45 | 2.55 |
they're taken to HTTPS://google.com. | 1,374 | 4.75 |
And it turns out that we can
use this href attribute not only | 1,378.75 | 3.09 |
to link to different
websites altogether, | 1,381.84 | 2.31 |
but we can link to different
pages on the same website. | 1,384.15 | 3.54 |
So, for example, if I wanted
to link to that cat page | 1,387.69 | 2.73 |
that I designed a moment ago,
instead of linking to google.com, | 1,390.42 | 3.9 |
I could instead just link to image.html. | 1,394.32 | 4.53 |
And now, if I save that and refresh,
or if I open up link.html again, | 1,398.85 | 5.94 |
now I see a click here link,
where when I click on Click here, | 1,404.79 | 3.21 |
now I'm taken to that
page, image.html, that | 1,408 | 3.63 |
happened to have that
picture of a cat from before. | 1,411.63 | 3 |
So using these anchor
tags and href attributes, | 1,414.63 | 3.03 |
we're able to link
together multiple pages. | 1,417.66 | 1.83 |
So that if we have a website that
has many different web pages, | 1,419.49 | 2.79 |
we can connect them all
together by using a combination | 1,422.28 | 3.03 |
of these various different links. | 1,425.31 | 2.58 |
So now that we've seen images and links
and lists, what other HTML elements | 1,427.89 | 4.44 |
might we add to our web page? | 1,432.33 | 1.65 |
Well, one thing we might
want to add are things | 1,433.98 | 1.95 |
like tables, just other ways
of displaying information. | 1,435.93 | 2.65 |
So let's go ahead and create a
table and look at what HTML elements | 1,438.58 | 3.47 |
we can use in order to do so. | 1,442.05 | 2.71 |
So I'll go back here to my text editor,
create a new file called table.html. | 1,444.76 | 4.46 |
Using the same starting HTML,
we'll call this page Table. | 1,449.22 | 4.96 |
And inside the body of
this page now, there | 1,454.18 | 2.33 |
are a number of different
HTML elements that we'll | 1,456.51 | 2.49 |
need in order to create a table,
because as you might imagine, | 1,459 | 3.07 |
a table is really composed
of multiple parts. | 1,462.07 | 2.42 |
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