考虑兼容性采用 -webkit- -o- -mos- -ms-
@keyframes fadeIn{
0%{
opacity: 0;
display: block;
}
100%{
opacity: 1;
}
}
@keyframes fadeOut{
0%{
opacity: 1;
}
100%{
opacity: 0;
display: none;
}
}
@keyframes flash{
0%{
opacity: 1;
}
50%{
opacity: 0;
}
100%{
opacity: 1;
}
}