So, in the last module we started looking
at CSS, which is Cascading Style Sheets,

and why is it important to separate
styling from the content when you're

doing web design and development.
And in this particular week, you will

continue learning CSS, but we move in,
we move further from basic styling to

more layout and positioning.
And this is your chance to really

get to learn CSS well and make sure
that you have mastered CSS enough

to be able to use in the websites
that you develop for this course.

And the other topic that we cover
this week is graphics and media,

so we get familiar with various kinds
of media formats, like JPEG, GIF, PNG,

TIFF, and so on, and it is very important
to know which media formats to use when,

and how do the quality components matter
in terms of how they impact file sizes,

because if the file sizes are too large,
then they won't load effectively on the

computers of people who might have slow
internet connections, and also it is good

to be able to be familiar with any sort of
photo manipulation software,

like GIMP, or Adobe Creative Suite,
and so on, so that you can manipulate

the images in an effective manner when
you want to use them in your web pages.