The svg image pans first and then zooms in to the animation effect

.location {
	position: absolute;
	width: 100%;
	animation:mainImg 3s 1; mainImg:声明动画变量，动画时间为3秒，播放1次
	animation-fill-mode: forwards;	保留最终显示状态
	-webkit-animation:mainImg 3s 1; /*Safari and Chrome*/
	-webkit-animation-fill-mode: forwards;
}
@keyframes mainImg	opacity: 渐变效果 scale：按比例放大/缩小
{
	0%{opacity: 1;}
	50%{ opacity: 0.2;}
	100%{ transform: translate(1550px, -400px) scale(7);opacity: 0;}  translate(x,y) x:横坐标位移, y: 纵坐标位移, scale: 按比例缩放
}
@-webkit-keyframes mainImg
{
	0%{opacity: 1;}
	50%{ opacity: 0.2;}
	100%{ transform: translate(1550px, -400px) scale(7);opacity: 0;}
}