Hello @farid.dokuchaev,
​
Remove the earlier code from Custom CSS and copy following code direct to your CSS editor
​

@media only screen and (max-width:767px){
​
#mobile-trigger{
    
    display: none;
}
​
}

Hope this helps and let us know, for any further assistance.
Regard,

Hello @farid.dokuchaev,
Sorry for the trouble you are having. Anyways, try this code out.

@media only screen and (max-width:767px){

#mobile-trigger{
   display: none !important;
}

#mobile-trigger-top {
   display: block !important;
}
}

Please let us know if it worked.

Thanks!