При выставлении данного стиля из вашего поста нет смысла оставлять адаптивные стили, так как меньше 1300 сайт уже не сузится, в main.css найдите и удалите:
@media only screen and (min-width:1024px) and (max-width:1220px){
.popup-gallery{margin-top:20px;}
.prods-paginate .fr,.prods-paginate .fl{top:-45px;}
.indexadapt .product-list2, .indexadapt .product-filter{width:900px;}
.indexadapt{width:900px;}
.choosecatalog li{float:right;}
#cart{float:none;margin:10px auto 0 auto;}
.logo{float:none;margin:0 auto;width:auto;text-align: center;}
.mainmenu .menu{float:none;width:100%;padding:0 5px;width:670px;margin:0 auto;}
.mini{width:95px;height:95px;}
.menuwrp{padding:45px 0 15px 0;}
.listright .name{display:block;}
.prodGlobalWrp{}
.searchinp{width:450px;height:28px;}
.content{width:900px;}
.catalogcont{width:900px;}
.mainmenu{width:900px;}
.headercont{width:900px;}
.footercontent{width:900px;}
.box{width:900px;}
.col4{width:225px;}
.form.feedb input{width:150px;}
.form.feedb textarea{width:150px;}
.indexfeedb_button button{width:150px;}
.prodbox .leftside,.prodbox .rightside{width:50%;padding:5px;}
.adapt{width:600px;}
.product-list2, .product-filter{width:600px;}
.product-filter > .category-products > .form-inline.OrderFilterForm{padding:5px 15px 15px 15px;}
.prodbuttons-list {padding: 0px 0px 0 60px;}
.addToCart.button, .add_to_compare_small.line, .add_to_wishlist_small.line {padding: 10px 0;font-size: 18px;}
.htmlDataBlock.just{width:295px;}
.listright .name{width:120px;}
.listright .name a{font-size:18px;}
.price-old-list{margin-top:5px;}
.box .catwrp > div > ul > li{width:260px;}
.oneprop .attr_name,.oneprop .attr_value{width:49%;}
.oneSale .rightside{width:260px;}
}
@media only screen and (min-width:700px) and (max-width:968px){
.logo{float:none;text-align:center;width:auto;}
.mainmenu .menu{float:none;margin:0 auto;padding:0 5px;}
#cart{margin:10px auto 0 auto!important}
}
@media only screen and (min-width:700px) and (max-width:827px){
.choosecatalog li {
float: right;
}
}
@media only screen and (min-width:700px) and (max-width:1023px){
.indexadapt .product-list2, .indexadapt .product-filter{width:100%;}
.indexadapt{width:100%;}
.menuwrp{padding:80px 0 15px 0;}
.resClear1023{clear:both;}
form#search_mini_form {padding-top:0;padding-bottom: 10px;}
.listright .name{display:block;width:auto;width:300px;}
.list_prod_wrp .htmlDataBlock.just{width:auto;height:auto;width:auto;}
.listleft .price-old-list{margin-top:5px;text-decoration:line-through;}
.prodbuttons-list{display:block;}
#search{margin-right:10px;}
.logo{padding-left:10px;}
#cart{float:none;margin:0 auto;}
.clear1024{clear:both;}
.mini{width:95px;height:95px;}
.prodbox .leftside,.prodbox .rightside{width:50%;padding:5px;}
.oneprop .attr_name,.oneprop .attr_value{width:49%;}
.mainmenu{width:100%;}
.product-list2, .product-filter{width:100%;}
.content{width:95%;}
.catalogcont{width:95%;}
.headercont{width:100%;}
.box{width:100%;}
.box .catwrp > div > ul > li{width:245px;}
.footercontent{width:100%;}
.col4{width:40%;margin:2% 2%;}
.adapt{width:100%;}
.leftbar {float:none;width: 300px;min-height: 100px;margin: 0 auto;}
.oneSale .rightside{width:auto;}
}
@media only screen and (min-width:486px) and (max-width:699px){
.popup-gallery{margin-top:10px;}
.indexadapt .product-list2, .indexadapt .product-filter{width:100%;}
.indexadapt{width:100%;}
form#search_mini_form {padding-top:0;padding-bottom: 10px;}
.thumbnail{max-width:100%;}
.listleft{display:block;}
.listright{display:block;max-height:none;}
.listright .name{width:250px;}
.prodbuttons-list{padding:0 0 0 30px;}
.price-old-list{margin-top:5px;}
.choosecatalog li {
float: right;
}
.mainmenu .menu{width:100%;}
.clear1024{clear:both;}
#cart{margin:10px auto 0 auto;float:none;}
.menuwrp{padding:90px 0 15px 0;}
.logo{float:none;margin:0 auto;}
.mini{width:58px;height:58px;}
.prodbox .leftside,.prodbox .rightside{width:50%;padding:5px;}
.oneprop .attr_name,.oneprop .attr_value{width:49%;}
.prods-paginate .fr{top:-50px;}
.prods-paginate .fl{top:-50px;}
.prodGlobalWrp{padding:40px 25px;margin-top:15px!important;}
.product-filter > .category-products > .form-inline.OrderFilterForm{padding:5px 15px 15px 15px;}
ul.sort{text-align:right;}
.choose{margin-bottom:10px;}
.filter.table select{width:200px;}
.leftbar{float:none;margin:0 auto;}
.mainmenu .menu{display:none;margin:0 auto;}
.mainmenu{width:95%;}
.lowResMenuButton{display:block;text-align: center;
padding: 12px;
background: #DF747A;
font-size: 30px;
color: white;
font-weight: bold;
cursor: pointer;
box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);
-moz-box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);
-webkit-box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);}
.logo{display:block;position:static;}
.mainmenu .menu{position:static;padding:10px;text-align:center;}
.mainmenu .menu li{display:block;float:none;}
.product-list2, .product-filter{width:100%;}
.headercont{width:100%;}
.catalogcont{width:95%;}
.content{width:100%;}
.footercontent{width:100%;}
.col4 {width: 45%;margin: 1% 2% 0 3%;float: left;padding: 0 20px 0 0;color: #616161;}
.form.feedb input{width:150px;}
.form.feedb textarea{width:150px;}
.indexfeedb_button button{width:150px;}
.box .catwrp > div > ul > li{width:95%;}
.adapt{width:95%;float:none;margin:0 auto;}
.logo{text-align:center;}
div#search.noindex{display:block;position:static;margin-top:5px;text-align:center;width:100%;}
.searchinp{width:80%;height:28px;}
.leftbox:last-of-type{margin:0 0 15px 0;}
.leftbar{min-height:10px;}
.goods-image-other{max-width:100%;}
.box{width:100%}
}
@media only screen and (min-width:320px) and (max-width:485px){
#OrderAjaxBlock .right button.button{margin:10px auto!important;}
.indexadapt .product-list2, .indexadapt .product-filter{width:100%;}
.indexadapt{width:100%;}
.menuwrp{padding:90px 0 30px 0;}
.hideLowRes{display:none;}
.oneFavorite{float:none;margin:10px auto;}
form#search_mini_form {padding-top:0;padding-bottom: 10px;}
.box{width:100%}
.regField textarea{width:100%;}
.thumbnail{max-width:100%;}
.choosecatalog span{display:block;text-align:center;float:none;}
.choosecatalog.choose .jq-selectbox__select{width:250px;margin:0 auto;}
.choosecatalog li{float:none;}
.header{}
.mini{width:45px;height:45px;}
.regField.forTime label{margin:0 auto 5px auto;display:block;}
.lowResClear{clear:both;}
#cart{width:80%;display: block;float: none;text-align: center;border: 1px solid #eee;margin: 0 auto;font-size: 18px;margin-top:20px;}
.success1.graybg{border: 1px solid #DF747A;padding: 10px;font-size: 20px;text-align: justify;background: #DF747A;color: white;}
.alignCenter button{display:block;padding:10px;width:100%;border:none;margin:10px 0;cursor:pointer;}
.goods-image-other{max-width:100%;}
.prods-paginate{height:25px;}
.goodsDataOpinionAddTable tr td{display:block;text-align:center;}
.goodsDataOpinionAddTable tr td label{font-size:18px;font-weight:0;}
.goodsDataOpinionAverageInfo a{display:block;margin:5px;}
.goodsDataOpinionAverageInfo a.active{border-color:#DF747A;}
.right button, .right .button{width:190px;}
.goodsDataOpinionTableRating{margin:0 auto;}
div#tabs a{display:block;margin:5px 0;padding:8px;}
div#tabs a.active{border:1px solid #DF747A;color:#DF747A;}
.oneprop .attr_name,.oneprop .attr_value{width:49%;}
.oneSale .rightside{width:100%;}
.prodbuttons-list{display:block;padding:0;}
.htmlDataBlock.just{width:100%;height:auto;}
.listright{max-height:none;width:100%;}
.listright .name{width:100%;margin:10px 0;cursor:pointer;}
.listright .addToCart.button,.all_list_wrp .add_to_wishlist_small,.all_list_wrp .add_to_compare_small,.all_list_wrp .noavalible{width:80%;margin:10px auto;}
.regField input{width:100%;}
.price-old-list{margin-top:5px;}
.price-old-list span{text-decoration:line-through;}
.filter.table{width:100%;float:none;margin:10px auto;}
.filter.table .jq-selectbox{width:100%}
.filter.table .jq-selectbox__select{width:100%;}
.product-filter > .category-products > .form-inline.OrderFilterForm{padding:5px 15px 15px 15px;}
.choose{margin:10px 5px;}
.orderHistoryTable{width:100%;overflow-x:scroll;}
.succsessOrderPage .contact-table,.succsessOrderPage .shopping-cart-table{width:450px;}
.overXforTable{width:100%;overflow-x:scroll;padding:0px;}
.needOver{width:480px;}
.succsessOrderPage h2{text-align:center;}
.box .catwrp > div > ul > li{width:90%;}
.clientForm h2{text-align:center;margin:10px 0;padding:5px 10px;}
.regField label{margin:0 0 5px 0;font-size:18px;}
.orderStageDeliveryListTable tbody tr.first .cell1{width:25px;padding:0;vertical-align:top;}
.orderstageTwrp .cell1{vertical-align:top;}
.zones.incart:last-of-type{padding:10px 0 20px 0;}
.wide textarea{width:100%;}
.couponBlock input{width:100%;}
.couponBlock label{width:100%;}
.quickInputsBlock .input-box input,.quick input{width:100%;}
.control label{-moz-user-select: none;-webkit-user-select: none;-ms-user-select: none;-o-user-select: none;user-select: none;display:inline;}
.control input{display:inline;width:15px;}
.quickInputsBlock label{width:100%;}
.quickInputsBlock .input-box{display:block;}
ul.form-list {
text-align: center;
}
.showPassBlock{padding:5px 0 0 0;}
table.form.quick{text-align:center;}
.quick tr td:first-of-type{width:100%;}
.quick tr td{display:block;}
.quick tr td.wantreg{width:100%;}
fieldset.scroll {
min-width:100%;
overflow-x:scroll;
}
.cartTable{min-width:560px}
.right button, .right .button{margin:10px auto;}
.regField{text-align:center;}
.lowResMenuButton{display:block;text-align: center;
padding: 12px;
background: #DF747A;
font-size: 30px;
color: white;
font-weight: bold;
cursor: pointer;
box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);
-moz-box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);
-webkit-box-shadow: 3px 3px 0 rgba(153, 153, 153, 0.2);}
.logo{text-align:center;}
div#search.noindex{display:block;position:static;text-align:center;width:100%;}
.searchinp{width:80%;height:28px;}
.product-list2, .product-filter{width:auto;text-align:center;}
.col4{
width: 100%;
margin: 3% 0% 0 0%;
text-align:center;
padding:0 10px;
}
.adapt{width:95%;margin:0 auto;float:none;}
.leftbar{float:none;min-height:10px;margin:0 auto;}
.leftbox{width:300px;}
.headercont{width:100%;}
.catalogcont{width:95%;}
.content{width:100%;}
.footercontent{width:100%;}
.breadcrumb{margin:0 auto 15px auto;}
.leftbar{float:none;margin:0 auto;}
.mainmenu .menu{display:none;}
.mainmenu{width:95%;}
.mainmenu .menu{padding:10px;text-align:center;width:100%;float:none;}
.mainmenu .menu li{display:block;float:none;}
.logo{display:block;position:static;float:none;margin:0 auto;}
ul.sort > div, ul.sort > li{margin:0;display:block;}
.abwrp{text-align:left;float:none;}
.sortWrp{float:none;text-align:center;}
.product-list2, .product-filter{float:none;}
.choose .jq-selectbox{width:100%;margin-bottom:10px;}
.choose .jq-selectbox__select{width:100%;}
.prodbox .rightside{width:100%;}
.prodbox .leftside{width:100%;}
.goodsDataMainModificationsBlockProperty{text-align:center;display:block;margin:10px auto;}
.goodsDataMainModificationsDescriptionBlock{text-align:justify;}
.plus_minus_quantity{text-align:center;}
.goodsDataOpinionAddTable tr td{margin:0 auto;}
.needover {width:100%;overflow-x:scroll;}
.CompareGoodsTable .left{display:block;float:none;margin:0 auto;}
.CompareGoodsTable .right{float:none;display:block;margin:10px 0;}
.CompareGoodsTableTbody tbody{min-width:560px;}
.someOperations a{display:block;margin:10px 0;}
}
@media only screen and (min-width:800px) and (max-width:1023px){
.noindex#search .searchinp{width:450px;height:28px;}
}
@media only screen and (min-width:700px) and (max-width:799px){
.noindex#search .searchinp{width:450px;height:28px;}
.popup-gallery{margin-top:25px;}
.prods-paginate .fr,.prods-paginate .fl{top:-50px;}
}
@media only screen and (min-width:320px) and (max-width:599px){
#tabs a{display:block;margin:5px 0;}
div#tabs a.active{border: 1px solid #DF747A;
color: #DF747A;}
}