En Nueva página el menú no funciona  

Hola

Prueba con el siguiente código CSS

body.page-id-543 header .menu-button,
body.page-id-543 header .nav{
	display:none;
}

Como ves el código sólo funcionará para la página con id 543 que es la página que has creado
Agrega este código al final de tu archivo style.css de tu theme o childtheme

Si lo agregas en el archivo style.css perderás los cambios en la actualización del theme, por lo que te sugiero documentar estos cambios en caso tengas que volver a realizarlos.

Saludos.

Gracias Jhon, con uno parecido es con el que había probado, lo he introducido en editor-style.css

y sigue sin funcionar.

o es en style.css donde debo ponerlo? si es en este último dónde lo incluiría este es el final de ese .css
}
/*
End default styles
-------------------------------------------------- */

gracias de antemano!

Hola

No veo que hayas agregado el código
Contenido solo visible a usuarios registrados

Puedes agregarlo al final de todo

Saludos.

Buenas, lo he añadido aquí, y sigue mostrando el menú.
/*
Theme Name: NRGAgency
Theme URI: http://demo.themeton.com/nrgagency
Author: ThemeTon
Author URI: http://themeton.com
Description: Premium One Page Wordpress Theme
Tags: white, light, one-column, right-sidebar, custom-header, custom-menu, featured-images, post-formats, sticky-post, translation-ready
Version: 1.3.5
License:
License URI:
Text Domain: nrgagency
*/
/*
-----------------------------------------------------------------------------------
TABLE OF CONTENTS
-----------------------------------------------------------------------------------

1. CSS INDEX - Contains only few css lines those are required globally

101. GENERAL CSS
102. DEFAULT WORDPRESS CSS

2. LESS FILES - Most of styles are in LESS directory and they has following structure.
This is just for your information and you have to careful when you edit.

201. GLOBAL STYLES (_global.less)
- FONTS
- LOADER
- RESET
202. SWIPER (_swiper.less)
- BASIC SWIPER STYLE
- PAGINATION STYLE
- EFFECT STYLE
203. HEADER (_header.less)
- HEADER
- HEADER LEFT STYLE
- PAGE TITLE
204. FOOTER (_footer.less)
- FOOTER
- FOOTER RESPONSIVE
- SUBSCRIBE FORM
- WIDGETS
205. CONTENT SECTION & ELEMENTS (_content.less)
- VC COLUMN VERTICAL ALIGN
- CONTENT SECTION
- COMMENTS FORM
- POST ITEM STYLE
- VC TAB RESTYLING
- TEAM
- OUR PROGRESS TAB
- PAGINATION
- PRICE BOX
- SKILL PROGRESS BAR
- COUNTER NUMBERS
- SERVICE BOX
- LOGO PROJECT
- TIMELINE
- PRICE BOX STYLE
- TESTIMONIAL SLIDE CONTAINER
- TABBED TEAM MEMBER
- IMAGE ZOOM GALLERY
- CONTACT FORM
- CONTACT FORM : RESERVATION
- PORTFOLIO
- GALLERY
- MODELS
- PORTFOLIO & FASION GALLERY
- ARROWS
- TESTIMONIAL WRAPPER
- TESTIMONIAL ITEM
- TEAM CONTAINER & ITEM
- TEAM CAROUSEL
- INFO CONTENT
- EXTENDED TAB & TOUR
- TEXT IMAGE CAROUSEL
- HELPER CLASSES
206. RESPONSIVE STYLES (_responsive.less)
- Extra Small devices
- Small devices
- Medium devices
- Large devices

-----------------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------------
101 - General CSS
-----------------------------------------------------------------------------------*/
@font-face {
font-family: 'Jaapokki';
src: url('fonts/jaapokki-regular-webfont.eot');
src: url('fonts/jaapokki-regular-webfont.eot?#iefix') format('embedded-opentype'),
url('fonts/jaapokki-regular-webfont.woff2') format('woff2'),
url('fonts/jaapokki-regular-webfont.woff') format('woff'),
url('fonts/jaapokki-regular-webfont.ttf') format('truetype'),
url('fonts/jaapokki-regular-webfont.svg#jaapokkiregular') format('svg');
font-weight: normal;
font-style: normal;
}
body{
padding-bottom: 0px;
font-size: 16px;
line-height: 1.8em;
}
body.blog{
padding-bottom: 0px;
padding-top: 0px;
}
body.no-content-padding .blog-section{
padding-top: 0px;
padding-bottom: 0px;
}
.header{
top: 0px;
left: 0px;
}
body.admin-bar:not(.non-sticky-header) .header{
top: 32px;
}
/* Footer section styles */
footer .mc4wp-form{
margin: -1em 0;
}
footer .mc4wp-form form{
max-width: 570px;
height: 45px;
background-color: #404249;
margin: 0 auto;
padding: 0 0 0 20px;
position: relative;
display: block;
overflow: hidden;
}
footer .mc4wp-form form p{
margin: 0;
}
footer .mc4wp-form label,
footer .mc4wp-form input{
float: left;
line-height: 45px;
}
footer .mc4wp-form label{
color: #fff;
font-size: 13px;
text-transform: uppercase;
letter-spacing: 2px;
vertical-align: middle;
padding-top: 2px;
padding-right: 9px;
position: absolute;
left: 20px;
}
footer .mc4wp-form label:after{
content: '';
height: 10px;
width: 2px;
background: #fff;
display: inline-block;
position: absolute;
right: 0;
top: 20px;
}
footer .mc4wp-form input[type=email]{
margin-left: 150px;
width: 90%;
border: none;
height: 45px;
color: #646464;
background: none;
padding: 0 8px;
float: left;
}
footer .mc4wp-form input[type=submit]{
font-size: 0;
border: none;
background: url("img/v-arrow.png") no-repeat 40% 19px;
position: absolute;
right: 0;
transition: background 0.3s ease;
width: 10%;
}
footer .mc4wp-form input[type=submit]:hover{
background-position: 70% 19px;
}
#comments{
padding: 0 120px;
padding-top: 70px;
}
#reply-title{
margin-bottom: 30px;
}
.form-allowed-tags {display:none;}
.swiper-slide {
/* Center slide text vertically */
display: -webkit-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
-webkit-box-pack: center;
-ms-flex-pack: center;
-webkit-justify-content: center;
justify-content: center;
-webkit-box-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;
}
.folio-args{
display: none;
}
.team-member-container .thumb-img{
display: none;
}
.content-media {
margin-bottom: 40px;
}
.content-media img {
margin-left: auto;
margin-right: auto;
display: block;
}
.post-item.sticky {
background-color:#efefef;
}

.error404 .blog-section h2 {
font-size: 172px;
text-align: center;
}
.error404 .blog-section p {
margin: 20px 0;
}

/*-----------------------------------------------------------------------------------
102 - Default styles
-----------------------------------------------------------------------------------*/
img {
-ms-interpolation-mode: bicubic;
border: 0;
height: auto;
max-width: 100%;
vertical-align: middle;
}
button,input,select,textarea {
max-width: 100%;
vertical-align: baseline;
padding: 10px;
color: #3b3b3b;
}
table,th,td {
border: 1px solid #eaeaea;
border: 1px solid rgba(51, 51, 51, 0.1);
}
table {
border-collapse: collapse;
border-spacing: 0;
border-width: 0px;
margin: 0px;
width: 100%;
}
caption,th,td {
font-weight: normal;
text-align: left;
}
th {
border-width: 0px;
font-weight: 700;
}
td {
border-width: 0px;
}
th,td {
padding: 0.4em;
}
/* Text meant only for screen readers */
.screen-reader-text {
clip: rect(1px, 1px, 1px, 1px);
height: 1px;
overflow: hidden;
position: absolute !important;
width: 1px;
}
/* Page links */
.content-text {margin-top:20px;}
.page-links {clear:both;}
.page-links a,
.page-links > span {
border: 1px solid #eaeaea;
display: inline-block;
height: 2em;
line-height: 2;
margin: 0 0.3333em 0.3333em 0;
text-align: center;
width: 2em;
}
.page-links a {
-webkit-tap-highlight-color: rgba(255, 255, 255, 0.3);
background-color: #333;
border-color: #333;
color: #fff;
}
.page-links a:focus {
color: #fff;
text-decoration: none;
}
.page-links > .page-links-title {
border: 0;
padding-right: 0.5em;
width: auto;
}

/**
* Galleries
*/
.gallery {
margin-bottom: 1.6em;
}
.gallery-item {
display: inline-block;
padding: 1.79104477%;
text-align: center;
vertical-align: top;
width: 100%;
}
.gallery-columns-2 .gallery-item {
max-width: 50%;
}
.gallery-columns-3 .gallery-item {
max-width: 33.33%;
}
.gallery-columns-4 .gallery-item {
max-width: 25%;
}
.gallery-columns-5 .gallery-item {
max-width: 20%;
}
.gallery-columns-6 .gallery-item {
max-width: 16.66%;
}
.gallery-columns-7 .gallery-item {
max-width: 14.28%;
}
.gallery-columns-8 .gallery-item {
max-width: 12.5%;
}
.gallery-columns-9 .gallery-item {
max-width: 11.11%;
}
.gallery-icon img {
margin: 0 auto;
}
.gallery-caption {
color: #707070;
color: rgba(51, 51, 51, 0.7);
display: block;
font-family: "Noto Sans", sans-serif;
font-size: 12px;
font-size: 1.2rem;
line-height: 1.5;
padding: 0.5em 0;
}
.gallery-columns-6 .gallery-caption,
.gallery-columns-7 .gallery-caption,
.gallery-columns-8 .gallery-caption,
.gallery-columns-9 .gallery-caption {
display: none;
}
/* Static instagram widget */
.jr-insta-thumb .thumbnails {
width: 100%;
float: left;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 3px;
}
.jr-insta-thumb .jr_col_3 > li { width: 33%;}
.jr-insta-thumb .thumbnails > li {
border: 0;
background: 0;
box-shadow: none;
-webkit-box-shadow: none;
-moz-box-shadow: none;
display: -moz-inline-stack;
display: inline-block;
vertical-align: top;
zoom: 1;
padding: inherit !important;
margin: 0 !important;
text-decoration: none;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.jr-insta-thumb:after {
content: "";
display: table;
clear: both;
}
/* Helper classes: Content Alignments */
.alignleft {
display: inline;
float: left;
}
.alignright {
display: inline;
float: right;
}
.aligncenter {
display: block;
margin-right: auto;
margin-left: auto;
}
.blockquote.alignleft,
.wp-caption.alignleft,
img.alignleft {
margin: 0.4em 1.6em 1.6em 0;
}
.blockquote.alignright,
.wp-caption.alignright,
img.alignright {
margin: 0.4em 0 1.6em 1.6em;
}
.blockquote.aligncenter,
.wp-caption.aligncenter,
img.aligncenter {
clear: both;
margin-top: 0.4em;
margin-bottom: 1.6em;
}
.wp-caption.alignleft,
.wp-caption.alignright,
.wp-caption.aligncenter {
margin-bottom: 1.2em;
}

/* Captions */
.wp-caption {
margin-bottom: 1.6em;
max-width: 100%;
}
.wp-caption img[class*="wp-image-"] {
display: block;
margin: 0;
}
.wp-caption-text {
font-family: "Noto Sans", sans-serif;
font-size: 12px;
line-height: 1.5;
padding: 0.5em 0;
text-align: center;
}
/* Helper classes */
.clearfix {clear:both;}
.text-white {color:#fff !important;}
.text-light {color:#ffffff;}
.text-light a {color:#ffffff;}
.text-light a[class^="social_"] {color:#ffffff;border-color:#ffffff;}
.text-light h1,.text-light h2,.text-light h3,.text-light h4,.text-light h5,.text-light h6 {color:#ffffff;}
.text-dark {color:#222;}
.text-dark a {color:#222;}
.text-dark a[class^="social_"] {color:#222;border-color:#222;}
.text-dark h1,.text-dark h2,.text-dark h3,.text-dark h4,.text-dark h5,.text-dark h6 {color:#222;}
.text-thin {font-weight:100 !important;}
.text-thin-300 {font-weight:300 !important;}
.animate {opacity:0;}
@media (max-width:480px) {.hidden-xxs {display:none !important;}}
.text-center {text-align:center;}
.text-right {text-align:right;}
.text-left {text-align:left;}
.list-inline {list-style:none;padding-left:0;}
.list-inline li {display:inline-block;padding-right:0;}
.list-inline li + li {padding-left:10px;}
.no-margin {margin:0;}
.no-margin-top {margin-top:0;}
.no-margin-bottom {margin-bottom:0!important;}
.no-padding {padding:0;}
.no-padding-top {padding-top:0;}
.no-padding-bottom {padding-bottom:0;}
/* iFrame object embed overflow fix */
.content-text iframe, .content-text object, .content-text embed {
max-width: 100%;
}
.wpb_tabs_extended.vc_tta-container .vc_tta-panel-heading .vc_tta-panel-title {
display: none;
}
.vc_tta-container .vc_tta-panel-heading .vc_tta-panel-title {
font-size: 18px;
}
body.page-id-543 header .menu-button,
body.page-id-543 header .nav{
display:none;
/*
End default styles
-------------------------------------------------- */

Hola,

Veo que has añadido el código pero te ha faltado añadir la llave final de cierre }. Tendrías que ponerla, ya que esto puede provocar que falle.

Por otro lado, actualmente no veo que esté cargando ningún elemento de menú, por lo que entiendo que has cambiado algo.

Hola,

la he añadido y no cambia:

body.page-id-543 header .menu-button,
body.page-id-543 header .nav{
display:none;
}

y el menú sigue ahí. Adjunto captura con el mismo recuadrado en rojo.

Gracias!

Hola

Actualmente veo que el código ya oculta el menú en:
Contenido solo visible a usuarios registrados

En conclusión, simpre que realices cambios CSS refresca tu navegador o limpia cache para ver los cambios.

Saludos