@media screen and (max-width:1170px) {
	.big_nav .container {
		width: 1000px;
		box-sizing: border-box;
	}
	.container {
	    width: 1000px;
	    padding: 0 20px;
	    box-sizing: border-box;
	}
	.big_nav_item_title {
	    font-size: 16px;
	    box-sizing: border-box;
	}
	.big_nav_item_title {
	    width: 100%;
	    box-sizing: border-box;
	}
	.big_nav_item {
	    width: 30%;
	    box-sizing: border-box;
	}
	.big_nav_item_title .big_nav_item_links {
	    width: 100%;
	    box-sizing: border-box;
	}
	.contacts_form {
	    width: 100%;
	    box-sizing: border-box;
	}
}

@media screen and (max-width:1000px) {
	.big_nav {
		display: none
	}
	.navbar__links {
		display: none
	}
	.hamburger {
		display: -webkit-box;
		display: -ms-flexbox;
		display: flex
	}
	.container {
		padding: 0 40px;
	}
	.navbar {
		padding: 20px 0
	}
	.content__navbar {
		display: none
	}
	.content__main {
		padding-left: 0
	}
	.contacts_form {
		width: 100%;
		margin-left: 0;
		-webkit-box-sizing: border-box;
		box-sizing: border-box
	}
	.patents_img img {
		margin-bottom: 20px
	}
	.prod_galery_big {
		width: 100%
	}
	.prod_galery_big_item {
		width: 100%
	}
	.prod_desc {
		width: 100%
	}
	.prod_galery_mini {
		display: -webkit-box;
		display: -ms-flexbox;
		display: flex;
		margin-top: 20px;
		margin-left: 0;
		-ms-flex-wrap: wrap;
		flex-wrap: wrap
	}
	.prod_galery_mini_item {
		margin-right: 20px;
		width: 100px;
		height: 100px
	}
	.container {
	    width: 100%;
	}
	
}

@media screen and (max-width:736px) {
	.no-js .owl-carousel,
	.owl-carousel.owl-drag .owl-item,
	.owl-carousel.owl-loaded,
	.owl-carousel .owl-stage,
	.owl-carousel .owl-stage-outer {
		height: 300px
	}
	.owl-carousel .owl-dots {
		bottom: 40px
	}
	.navbar__logo img {
		width: 150px
	}
	.owl-carousel .owl-nav button.owl-prev {
		left: 20px
	}
	.owl-carousel .owl-nav button.owl-next {
		right: 20px
	}
	.hamburger {
		height: 24px;
		width: 40px
	}
	.preim .preim_content {
		padding: 40px
	}
	.container {
		padding: 0 20px
	}
}

@media screen and (max-width:500px) {
	.prod_galery_big {
		height: 300px
	}
	.prod_galery_big_item {
		height: 300px
	}
}