Here are all the different properties you can use with keyframes
:
animation-name:;
animation-duration:;
animation-iteration-count:;
animation-direction:;
animation-timing-function:;
animation-fill-mode:;
animation-delay:;
Change you code
.animate-flow{
-webkit-animation-name: flow;
animation-name: flow;
}
to e.g.:
.animate-flow{
-webkit-animation: flow 3s ease-in-out;
animation: flow 3s ease-in-out;
}