粘贴到盒子萌主题//assets/css/style.css//最后就可以

.section-blog-cover {
background-size:cover;
background-position:30% 30%;
animation: cusmove1 15s ease infinite;
-webkit-animation: cusmove1 15s ease infinite;
-moz-animation: cusmove1 15s ease infinite;
width: 100%;
filter: saturate(150%);
}

@keyframes cusmove1 {
0% {
background-position: 0% 0%;
}

15% {
background-position: 80% 50%;
}

30% {
background-position: 30% 80%;
}

45% {
background-position: 70% 15%;
}

55% {
background-position: 70% 55%;
}

70% {
background-position: 100% 100%;
}

85% {
background-position: 30% 10%;
}

100% {
background-position: 0% 0%;
}