Cambiar px contración menú  

Hola

Con el tema Biagiotti que tengo de pago, quería saber como cambiar a cuantos px se contrae el menú y salen las típicas rayitas como si estuvieras en móvil ya que lo hace a 1025px y quiero hacerlo a 1400px

en CSS adicional tiene este código, he ido tocándolo pero nada de nada

Me podéis ayudar?

.mkdf-header-divided .mkdf-page-header .mkdf-sticky-header .mkdf-vertical-align-containers .mkdf-position-left .mkdf-position-left-inner {
margin-right: -30px
}

.mkdf-header-divided .mkdf-page-header .mkdf-sticky-header .mkdf-vertical-align-containers .mkdf-position-right .mkdf-position-right-inner {
margin-left: -30px
}

.mkdf-page-content-holder .qodef-skincare .mkdf-page-hidden-cutom-text {
overflow: hidden;
}

.mkdf-ms-explorer .qodef-skincare #rev_slider_5_1_wrapper .biagiotti-nav.tparrows.tp-rightarrow {
left: 96% !important;
transform: matrix(1, 0, 0, 1, -19, -20) !important;
}

@media only screen and (min-width: 1921px) {
.mkdf-title-holder.mkdf-has-bg-image {
background-size: cover;
}

.mkdf-portfolio-single-holder .mkdf-ps-image-holder .mkdf-ps-image img {
width: 100%;
}
}

@media only screen and (min-width: 1400px) and (max-width: 1600px) {
.qodef-skincare-makeup .mkdf-single-image-holder {
padding: 0 69% 0 0 !important;
}
}
@media only screen and (min-width: 1025px) and (max-width: 1399px) {
.qodef-skincare-makeup .mkdf-single-image-holder {
padding: 0 77% 0 0 !important;
}
}
@media only screen and (min-width: 769px) and (max-width: 1024px) {
.qodef-skincare-makeup .mkdf-single-image-holder {
padding: 0 77% 0 0 !important;
}
}
@media only screen and (min-width: 681px) and (max-width: 768px) {
.qodef-skincare-makeup .mkdf-single-image-holder {
padding: 0 77% 0 0 !important;
}
}
@media only screen and (max-width: 680px) {
.qodef-skincare-makeup .mkdf-single-image-holder {
padding: 0 62% 0 0px !important;
}
}

@media only screen and (max-width: 680px) {
.mkdf-row-full-height-reset .elementor-container{
display: inline !important;
}
}

@media only screen and (min-width: 681px){

.mkdf-3-column-clients-grid .mkdf-grid-list.mkdf-three-columns .mkdf-item-space:nth-child(2n+1) {
clear: none;
}

.mkdf-3-column-clients-grid .mkdf-grid-list.mkdf-three-columns .mkdf-item-space {
width: 33.33333%;
}
}

Gracias

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