Web graphics design.

Web graphics are visual representations used on a Web site to enhance or enable the representation of an idea or feeling, in order to reach the Web site user. Graphics may entertain, educate, or emotionally impact the user, and are crucial to strength of branding, clarity of illustration, and ease of use for interfaces.
Examples of graphics include maps, photographs, designs and patterns, family trees, diagrams, architectural or engineering blueprints, bar charts and pie charts, typography, schematics, line art, flowcharts, and many other image forms.
Graphic designers have many tools and technologies at their disposal for everything from print to Web development, and W3C provides many of the underlying formats that can be used for the creation of content on the open Web platform.