.main-container {
	width: 100%;
	background: url(../images/body_bg.jpg);
	background-size: 100% 100%;
	padding-bottom: 52px;
}
.header {
	position: relative;
	z-index: 10;
}
.footer {
	margin-top: 0;
}
.center-container {
	width: 1000px;
	margin: 0 auto;
}
.topic-head {
	margin-left: -50px;
	margin-top: -16px;
}
.video-box {
	margin-top: 30px;
	position: relative;
	background: url(../images/video_bg.png) no-repeat;
	background-size: 100% 100%;
	box-sizing: border-box;
	padding: 20px;
}
.topic-rule {
	margin-top: 40px;
}
#myVideo_html5_api {
	position: relative;
}
.video-js .vjs-big-play-button{
    font-size: 2.5em;
    line-height: 2.8em;
    height: 3em;
    width: 3em;
    -webkit-border-radius: 2.5em;
    -moz-border-radius: 2.5em;
    border-radius: 2.5em;
    background-color: #73859f;
    background-color: rgba(115,133,159,.5);
    border-width: 0.15em;
    margin-top: -1.25em;
    margin-left: -1.75em;
}
/* 中间的播放箭头 */
.vjs-big-play-button .vjs-icon-placeholder {
    font-size: 2em;
}
/* 加载圆圈 */
.vjs-loading-spinner {
    font-size: 2.5em;
    width: 2em;
    height: 2em;
    border-radius: 1em;
    margin-top: -1em;
    margin-left: -1.5em;
}
.video-bg {
	display: block;
	width: 100%;
}