#container{
height: 100%;
width: 100%;
animation:bg-change 5s infinite;
}
.runny{
position:relative;}
#runny{
left:100%;
animation:fly 30s infinite;}
@keyframes fly{
0%{
left:1980px;
top:300px;}
25%{
top:100px;}
50%{
top:300px;}
75%{
top:100x;}
100%{
left:-1000px;
top:300px;
}
}
