body,figure{
	margin:0;
	padding:0;
}
#canvas{
   display:block;
   position: absolute;
   left:50%;
   top:50%;
   margin-left: -160px;
   margin-top: -284px;
   border: 1px solid black;
}
.start,.cxstart{
	width:120px;
	height:40px;
	border:3px solid white;
	position: absolute;
	top:50%;
	left:50%;
	margin-top:-80px;
	margin-left: -60px;
	color:white;
	font-size: 22px;
    line-height: 40px;
    transition:all 0.6s ease 0s;
}
.cxstart{
	text-align: center;
	line-height: 40px;
	display: none;
}
.start span{
	display: inline-block;
	margin:0px 18px;
}
.start:hover,.cxstart:hover{
	border:3px solid blue;
	color:blue;
}
/*.image-show-grid{
	position: relative;
	width: 3300px;
	height:678px;
	display: block;
}
 .image-show-grid::after{
	content: '';
	display: block;
	position: absolute;
	background-repeat: no-repeat;
	background-size: 3300px 678px;
	height: 678px;
	width: 3300px;
	background-image: url("images/haha.jpg");
	-webkit-animation-duration: 160s;
	animation-duration: 160s;
	-webkit-animation-timing-function: linear;
	animation-timing-function: linear;
	-webkit-animation-iteration-count: infinite;
	animation-iteration-count: infinite;
	-webkit-animation-name: showGridAnimationAfterLarge;
	animation-name: showGridAnimationAfterLarge;
}
.image-show-grid::before{
	content: '';
	display: block;
	position: absolute;
	background-repeat: no-repeat;
	background-size: 3300px 678px;
	height: 678px;
	width: 3300px;
	background-image: url("images/haha.jpg");
	-webkit-animation-duration: 160s;
	animation-duration: 160s;
	-webkit-animation-timing-function: linear;
	animation-timing-function: linear;
	-webkit-animation-iteration-count: infinite;
	animation-iteration-count: infinite;
	-webkit-animation-name: showGridAnimationBeforeLarge;
	animation-name: showGridAnimationBeforeLarge;
}
@-webkit-keyframes showGridAnimationBeforeLarge {
	0% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}

	50% {
		-webkit-transform: translate3d(-3300px, 0, 0);
		transform: translate3d(-3300px, 0, 0)
	}

	50.001% {
		-webkit-transform: translate3d(3300px, 0, 0);
		transform: translate3d(3300px, 0, 0)
	}

	100% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}
}

@keyframes showGridAnimationBeforeLarge {
	0% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}

	50% {
		-webkit-transform: translate3d(-3300px, 0, 0);
		transform: translate3d(-3300px, 0, 0)
	}

	50.001% {
		-webkit-transform: translate3d(3300px, 0, 0);
		transform: translate3d(3300px, 0, 0)
	}

	100% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}
}

@-webkit-keyframes showGridAnimationAfterLarge {
	0% {
		-webkit-transform: translate3d(3300px, 0, 0);
		transform: translate3d(3300px, 0, 0)
	}

	50% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}

	100% {
		-webkit-transform: translate3d(-3300px, 0, 0);
		transform: translate3d(-3300px, 0, 0)
	}
}
@keyframes showGridAnimationAfterLarge {
	0% {
		-webkit-transform: translate3d(3300px, 0, 0);
		transform: translate3d(3300px, 0, 0)
	}

	50% {
		-webkit-transform: translate3d(0, 0, 0);
		transform: translate3d(0, 0, 0)
	}

	100% {
		-webkit-transform: translate3d(-3300px, 0, 0);
		transform: translate3d(-3300px, 0, 0)
	}
} */