.about_bj{
	border-top:solid #CCC 3px;
	border-bottom:solid #ccc 3px;
	width:100%;
	height:100px;
    background: -webkit-linear-gradient(left top, #FDF4D0, #CFFEFE); /* Safari 5.1 - 6.0 */
    background: -o-linear-gradient(bottom right,  #FDF4D0,  #CFFEFE); /* Opera 11.1 - 12.0 */
    background: -moz-linear-gradient(bottom right,  #FDF4D0, #CFFEFE); /* Firefox 3.6 - 15 */
    background: linear-gradient(to bottom right,  #FDF4D0 , #CFFEFE); /* 标准的语法（必须放在最后） */
	
	}
	.donghua_div{
		margin-top:20px;
	width:200px;
	height:60px;
	background:red;
	position:relative;
	animation:mymove 3s;
	animation-iteration-count:1;
	animation-fill-mode:forwards;
	border-radius:20px;

	/* Safari 和 Chrome */
	-webkit-animation:mymove 3s;
	-webkit-animation-iteration-count:1;
	-webkit-animation-fill-mode:forwards;
		
		}
		.donghua_div h1{
			text-align:center;
			line-height:60px;
			color:#FFF;
			
			}
		@keyframes mymove
{
	from {right:-100%;}
	to {right:-300px;}
}

@-webkit-keyframes mymove /* Safari 和 Chrome */
{
	from {right:-100%;}
	to {right:-300px;}
}