.banner .slick .slick-slide a img{
    transition: all 8s;}
.banner .slick .slick-current a img {
    animation: img_scale linear 10s infinite;}

@keyframes img_scale {
    0% {
        transform: scale(1.2);}

    100% {
        transform: scale(1.05);}

}
.banner .slick .slick-slide a img{
    transition: all 8s;}
.banner .slick .slick-current a img {
    animation: img_scale linear 10s infinite;}

@keyframes img_scale {
    0% {
        transform: scale(1.2);}

    100% {
        transform: scale(1.05);}

}