.img_back {
	background-image: url("../img/back01.png");
	background-repeat: no-repeat;
/*	background-attachment: fixed;*/
	background-position: center top;
	background-size:cover;
}

.img_back_pan{
	background-image: url("../img/b.png");
	background-repeat: no-repeat;
	background-position: center top;
    background-size:contain;
}


.img_back_syasen{
	background-image: url("../img/syasen.png");
	background-repeat: no-repeat;
	background-position: center top;
    background-size:contain;
}

.border-radius_1{
	border-radius: 1em;
}

.border-width_2{
	border-width:2px!important;
}

.text-size_3em{
	font-size:3em;
}


.bg_bluesky{
	background:#00acc4;
}


.bg-gray{
	background:#c0d1e5;
}


.parent{
    position: relative;
    z-index: 5;
    height:872px;
}

.child{
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    margin: auto;
    z-index: -1;
}

@media screen and (min-width:768px) {
	.parent{
	    height:1072px;
	}

	.child{
	    top: 100px;
	}
}


@media screen and (min-width:992px) {
	.parent{
	    height:1502px;
	}
}