Each Activity timeline item receives its width from the parent list. It can
consume the full width of the main page area or be placed in the smaller right
Text describing the type of timeline item is placed in a span. It is the
first element in the timeline item and should be hidden with the
.slds-assistive-text class. The SVG image does not need the
Overview of CSS Classes
The CSS class being referred to.
A description of what the class does.
Whether the class name is dev-ready (meaning it's fully vetted and tested and safe to use) or prototype (which means it's not fully vetted yet).
The selector that the class name is allowed to be used on.
The base level pattern for a component. A variant can be extended to create another variant of that component, for example, a stateful button is a derivative of the base button.
A single class that can be added to an HTML element of a component to modify its output. Typically these will be colors, sizing and positioning.