Обычный
.start -- The style of the element when the <section> tag first comes into view.focus -- The style of the element with the <section> tag fills the screen.to -- The style of the element when the <section> anim-delay is over.end -- The style of the element when the <section> tag is just leaving the view
.start -- The style of the element when the <section> tag first comes into view
.focus -- The style of the element with the <section> tag fills the screen
.to -- The style of the element when the <section> anim-delay is over
.end -- The style of the element when the <section> tag is just leaving the view
