Circle waiting 3

HTML

<div class="waitframe">
    <div class="waitgradient"></div>
    <div class="waitmask"></div>
</div>

CSS

.waitframe {
    width: 20%;
    height: 20%;
    background-color: #008000;
    border-radius: 100%;
    overflow: hidden;
    position: relative;
    -webkit-animation: rotating 1.5s linear infinite;
}
.waitgradient {
    width: 50%;
    height: 50%;
    background: -webkit-linear-gradient(30deg, #008000 50%, #fff 100%);
}
.waitmask {
    width: 15%;
    height: 15%;
    position: absolute;
    top: 25%;
    left: 25%;
    border-radius: 100%;
    background-color: #fff;
}
@-webkit-keyframes rotating {
    from {
        -webkit-transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(360deg);
    }
}