Here is a brief description of how to specify a delay for the start of an animation in CSS3 using the CSS3 animation-delay property.
time - Optional. Defines the number of seconds (s) or milliseconds (ms) to wait before the animation will start.Default value is 0. Negative values are allowed
initial - Sets this property to its default value.
inherit - Inherits this property from its parent element.
The animation-delay property specifies a delay for the start of an animation.