ngôi sao lắp lánh css

**** HTML
<div class="left-container open">
<img src="saolaplanh.png" class="start-animate sang_header">
</div>
**** CSS
.start-animate {
    z-index: 99999999999999999 !important;
    position: absolute;
    animation: star linear 1.75s infinite;
    -moz-animation: star linear 1.75s infinite;
    -webkit-animation: star linear 1.75s infinite;
    -o-animation: star linear 1.75s infinite;
}
.sang_header {
    position: absolute;
    top: 1px;
    left: 0;
}
.left-container header {
    position: relative;
    margin: auto;
}
img.start-animate.sang_header {}
@keyframes star {
    0% {
        transform: rotate(0) scale(0);
    }
    50% {
        transform: rotate(180deg) scale(1.5);
    }
    100% {
        transform: rotate(360deg) scale(0);
    }
}