A PNG (Portable Network Graphics) file is a bitmap image format that has been designed to store images with an alpha channel. This format is primarily used for transparency so that it can be placed over other graphics in many design applications.
The measure of how easily light passes through a material. It is a quantitative characteristic that can be represented as a number within the range of [0, 1], and in some cases [0%,100%], with lower numbers indicating higher transparency.
How well or poorly something can be read.
An example of a typical user and the actions they take. Typically these are written in the form of a story.
The distance between the baseline and the mean line of lowercase letters in a typeface. Nearby descenders (such as j) and ascenders (such as q) usually extend slightly below or above this height.
A language used to create web pages, and it stands for Hypertext Markup Language.
A measure of the ease of understanding text.
Designers and developers use font styles to denote differences in meaning between two or more words, phrases, sentences, paragraphs, or blocks of text. Typical font styles in CSS and web development are normal, italic, oblique and inherit.
Generally used when a page has so much content that it would be impossibly long to load the entire page at once. Infinite scroll consists of an auto-generated list of items that constantly loads new items as they load off the bottom of the screen.
Layout is a defining characteristic of design. It dictates the positioning of content and design elements. Layouts can range from the simple, such as a four- or two-column layout, to more complex designs like grids with multiple hierarchy levels.
A type of typographical contrast used to convey emphasis. Italics were initially developed for the printing press and are now widely used in print, web design, public signs and labelling systems.