CSS3 Screen Shine

HTML

<div class="screen-shine"></div>

CSS

body {
    padding: 100px;
}

.screen-shine {
    background: #000;
    height: 200px;
    overflow: hidden;
    position: relative;
    width: 400px;
}
.screen-shine:after {
    background: -webkit-linear-gradient(#FFFFFF, transparent 170%);
    content: ' ';
    height: 100%;
    opacity: 0.3;
    position: absolute;
    right: -60%;
    width: 50%;
    -webkit-transform: skew(-15deg);
}