#pathmenu4 .menu {
	/*The main x menu item*/
	width: 50px;
	height: 50px;
	background: url('http://tigsa.com/wp-content/uploads/2016/03/boton_main-2.png') no-repeat;
}
#pathmenu4 .menu.back {
	/*The back button, just like the main button but allows you to go back one level*/
	background: url('https://tigsa.com/wp-content/plugins/pmenu/assets/images/backbutton.png') no-repeat;
}
#pathmenu4 .item {
	/*effects all child menu items*/
	width: 40px;
	height: 40px;
	background: url('https://tigsa.com/wp-content/plugins/pmenu/assets/images/menuitem.png') no-repeat;
}


#pathmenu4_menuitem0.item{
/* url to icon for page titled: Llamar*/
   background: url('http://www.pgsaludables.com/wp-content/uploads/2016/03/boton_llamada-2.png') no-repeat;
}
#pathmenu4_menuitem1.item{
/* url to icon for page titled: Google Maps*/
   background: url('http://www.pgsaludables.com/wp-content/uploads/2016/03/boton_gps-2.png') no-repeat;
}
#pathmenu4_menuitem2.item{
/* url to icon for page titled: Mail*/
   background: url('http://www.pgsaludables.com/wp-content/uploads/2016/03/boton_mail-2.png') no-repeat;
}
<!-- WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. -->