body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
}
.my_cen img{
	width: 100%;	
	}
	.contact{
	    display: block;
    position: fixed;
    z-index: 100;
    bottom: 4%;
    right: 2%;
    border-radius: 4px;
    transition: all 0.3s ease 0s;
}
@media screen and (min-width: 1000px) {
.pc{
	display: block;
	}
.mobile{
	display: none;
	}	
	
	.my1{
		width: 100%;
		text-align: center;
		    background-color: #7cceff;
	}	
	.my1 img{
		width: 1100px;
        text-align: center;
	}	
}
@media screen and (max-width: 999px) {
.pc{	
	display: none;	
}
.mobile{	
	display: block;
	}	
	.my1{
		width: 100%;
		
	}	
	.my1 img{
		width: 100%;
	}
}