@keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}
@-moz-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}
@-webkit-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}
@-ms-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}​
@-o-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}​

@keyframes fadeinup {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@-moz-keyframes fadeinup {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@-webkit-keyframes fadeinup {
    from { opacity: 0; -webkit-transform: translateY(20px); }
    to   { opacity: 1; -webkit-transform: translateY(0px); }
}
@-ms-keyframes fadeinup {
    from { opacity: 0; }
    to   { opacity: 1; }
}​
@-o-keyframes fadeinup {
    from { opacity: 0; }
    to   { opacity: 1; }
}​