Common Image Types Choosing Image Formats Using Color in CSS Styling HTML Text Elements
it is used by screen readers when the image cannot be ‘seen’, also if a picture cannot load it says what should be seen.
by adding an alt tags
an image gallery
gif’s are moving images svg stretches to any size without losing quality and can be loaded quickly
PNG as this format is perfect for screenshots and other types of imagery where there’s not a lot of color data.
background referes to the ‘wall’ of the page. Everything else is on top. Just like in a house you can have many walls and can make statement sections. You will not be able to see anything ‘behind’ the wall only what is on top of it. foreground is the main object on top of the background. for instance a framed photo on a wall.
I would add a background colour that is in keeping with his page, I could also add some colours to his headders and other main text. Adding colours to links and other navigation elements.
the versions of fonts you want to have such as its weight and style.
font-size: changes the hight of letters font-weight: the width of the letters font-style: changes the style eg italic/normal/bold
use letter-spacing or word-spacing in h1 element in css