reading_notes

Images:

The element is used to add images to a web page.
You must always specify a src attribute to indicate the source of an image and an alt attribute to describe the content of an image.
You should save images at the size you will be using them on the web page and in the appropriate format.
Photographs are best saved as JPEGs; illustrations or logos that use flat colors are better saved as GIFs.

Color not only brings your site to life, but also helps convey the mood and evokes reactions.

There are three ways to specify colors in CSS: RGB values, hex codes, and color names.
Color pickers can help you find the color you want.
It is important to ensure that there is enough contrast between any text and the background color (otherwise people will not be able to read your content).
CSS3 has introduced an extra value for RGB colors to indicate opacity. It is known as RGBA.
CSS3 also allows you to specify colors as HSL values, with an optional opacity value. It is known as HSLA.

There are properties to control the choice of font, size, weight, style, and spacing.

There is a limited choice of fonts that you can assume most people will have installed.
If you want to use a wider range of typefaces there are several options, but you need to have the right license to use them.
You can control the space between lines of text, individual letters, and words. Text can also be aligned to the left, right, center, or justified. It can also be indented.
You can use pseudo-classes to change the style of an element when a user hovers over or clicks on text, or when they have visited a link.