minitech是正确的，它animation-delay指定了动画开始之前的延迟，而不是指定两次迭代之间的延迟。 规范的编辑者草稿对此进行了很好的描述，并且您在此处讨论了此功能，这暗示了此迭代延迟功能。
尽管JS中可能有解决方法，但是您可以仅使用CSS来伪造此迭代延迟，以消除进度条耀斑。
通过声明flare divposition:absolute和父div overflow: hidden，将100％关键帧状态设置为大于进度条的宽度，并使用三次贝塞尔曲线计时功能和左偏移值，您可以模拟ease-in-out或linear计时延迟”。
编写一个less / scss mixin来计算确切的左偏移量和计时函数以获得这个精确度是很有趣的，但是我现在没有时间摆弄它。很想看到类似的东西！
这是我一起展示的演示。（我试图模仿Windows 7进度栏，但略有不足，但这证明了我在说什么）
演示：http：
//codepen.io/timothyasp/full/HlzGu
<!-- HTML -->
<div class="bar">
<div class="progress">
<div class="flare"></div>
</div>
</div>
/* CSS */
@keyframes progress {
from {
width: 0px;
}
to {
width: 600px;
}
}
@keyframes barshine {
0% {
left: -100px;
}
100% {
left: 1000px;
}
}
.flare {
animation-name: barshine;
animation-duration: 3s;
animation-direction: normal;
animation-fill-mode: forwards;
animation-timing-function: cubic-bezier(.14, .75, .2, 1.01);
animation-iteration-count: infinite;
left: 0;
top: 0;
height: 40px;
width: 100px;
position: absolute;
background: -moz-radial-gradient(center, ellipse cover, rgba(255,255,255,0.69) 0%, rgba(255,255,255,0) 87%); /* FF3.6+ */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,rgba(255,255,255,0.69)), color-stop(87%,rgba(255,255,255,0))); /* Chrome,Safari4+ */
background: -webkit-radial-gradient(center, ellipse cover, rgba(255,255,255,0.69) 0%,rgba(255,255,255,0) 87%); /* Chrome10+,Safari5.1+ */
background: -o-radial-gradient(center, ellipse cover, rgba(255,255,255,0.69) 0%,rgba(255,255,255,0) 87%); /* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover, rgba(255,255,255,0.69) 0%,rgba(255,255,255,0) 87%); /* IE10+ */
background: radial-gradient(ellipse at center, rgba(255,255,255,0.69) 0%,rgba(255,255,255,0) 87%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b0ffffff', endColorstr='#00ffffff',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
z-index: 10;
}
.progress {
animation-name: progress;
animation-duration: 10s;
animation-delay: 1s;
animation-timing-function: linear;
animation-iteration-count: infinite;
overflow: hidden;
position:relative;
z-index: 1;
height: 100%;
width: 100%;
border-right: 1px solid
background:
background: -moz-linear-gradient(top,
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,
background: -webkit-linear-gradient(top,
background: -o-linear-gradient(top,
background: -ms-linear-gradient(top,
background: linear-gradient(to bottom,
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#caf7ce', endColorstr='#2ab22a',GradientType=0 ); /* IE6-9 */
}
.progress:after {
content: "";
width: 100%;
height: 29px;
right: 0;
bottom: 0;
position: absolute;
z-index: 3;
background: -moz-linear-gradient(left, rgba(202,247,206,0) 0%, rgba(42,178,42,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(202,247,206,0)), color-stop(100%,rgba(42,178,42,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, rgba(202,247,206,0) 0%,rgba(42,178,42,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, rgba(202,247,206,0) 0%,rgba(42,178,42,1) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, rgba(202,247,206,0) 0%,rgba(42,178,42,1) 100%); /* IE10+ */
background: linear-gradient(to right, rgba(202,247,206,0) 0%,rgba(42,178,42,1) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00caf7ce', endColorstr='#2ab22a',GradientType=1 ); /* IE6-9 */
}
.bar {
margin-top: 30px;
height: 40px;
width: 600px;
position: relative;
border: 1px solid
border-radius: 3px;
}
animation-delay是动画开始之前的延迟，并且没有其他类似的属性。您可能不希望使用JavaScript的一个不好的解决方法：)