css3 图标变大变小在变小变大

css3

@-webkit-keyframes anLoca {
from {
-webkit-transform: scale3d(1, 1, 1);
}
to {
-webkit-transform: scale3d(0.9, 0.9, 0.9);
}
}

.indexLeft img {
-webkit-animation: anLoca 1s;
-webkit-animation-iteration-count: 10000;
-webkit-animation-direction: alternate;
}

html