css3动画从入门到精通

background-position-1{ from{ background-position:0 0;} to{ background-position:100% 100%;} } 范例二： .background-position linear-gradient(-45deg, transparent 75%, slategray 75%); animation:1s ease 0s alternate none infinite background-position -2;} @keyframes background-position-2{ from{ background-position:3px 0, 3px 0, 15px -150px, 15px -150px