您可以创建一个对角渐变背景,并在关键帧计时器上将其从最左侧滑到最右侧。将以下内容添加到您的 CSS 文件中,然后将“shimmer”类添加到您的 HTML 元素中。我使用关键帧中background-position-x 属性上的较大数字以及CSS 类的animation 属性中的动画速度(当前为8 秒)组合了动画速度。
@keyframes shimmerBackground {
0% {background-position:-5000px 0}
100% {background-position:5000px 0}
}
.shimmer
{
background-image: -moz-linear-gradient(160deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0) 25%, rgba(255,255,255,0.85) 60%, rgba(255,255,255,0) 100%);
background-image: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,0)), color-stop(25%,rgba(255,255,255,0)), color-stop(60%,rgba(255,255,255,0.85)), color-stop(100%,rgba(255,255,255,0)));
background-image: -webkit-linear-gradient(160deg, rgba(255,255,255,0) 0%,rgba(255,255,255,0) 25%,rgba(255,255,255,0.85) 60%,rgba(255,255,255,0) 100%);
background-image: -o-linear-gradient(160deg, rgba(255,255,255,0) 0%,rgba(255,255,255,0) 25%,rgba(255,255,255,0.85) 60%,rgba(255,255,255,0) 100%);
background-image: -ms-linear-gradient(160deg, rgba(255,255,255,0) 0%,rgba(255,255,255,0) 25%,rgba(255,255,255,0.85) 60%,rgba(255,255,255,0) 100%);
background-image: linear-gradient(160deg, rgba(255,255,255,0) 0%,rgba(255,255,255,0) 25%,rgba(255,255,255,0.85) 60%,rgba(255,255,255,0) 100%);
background-repeat: repeat-y;
background-position:-5000px 0;
animation: shimmerBackground 8s linear infinite;
}