How to reduce nebular side bar width?

I am using ngx-admin and have a question related on how I can dynamically reduce the sidebar size. Also when I minimize the browser, side-bar should be automatically resize according to the browser size. (It should be responsive).

I found my own answer for that. I change file one-column.layout.scss to this.

   @import '../../styles/themes';
   @import '~bootstrap/scss/mixins/breakpoints';
   @import '~@nebular/theme/styles/global/breakpoints';

   @include nb-install-component() {
       .menu-sidebar ::ng-deep .scrollable {
           padding-top: nb-theme(layout-padding-top);
      }
   }

   @include nb-install-component() {
      .menu-sidebar ::ng-deep .main-container.main-container-fixed {
          width: 10rem;
    }
  }

  @include nb-install-component() {
   .expanded {
        width: 10rem;
   }
 }

and change file one-column.layout.ts to this

import { AfterViewInit, Component, Inject, PLATFORM_ID, ViewChild } from '@angular/core';
import { isPlatformBrowser } from '@angular/common';
import { NbLayoutComponent } from '@nebular/theme';
import { WindowModeBlockScrollService } from '../../services/window-mode-block-scroll.service';

@Component({
selector: 'ngx-one-column-layout',
styleUrls: ['./one-column.layout.scss'],
template: `
 <nb-layout windowMode>
   <nb-layout-header fixed>
     <ngx-header></ngx-header>
   </nb-layout-header>

  <nb-sidebar state="expanded" class="menu-sidebar" style="width: 'auto'" tag="menu-sidebar" responsive>
    <ng-content select="nb-menu"></ng-content>
  </nb-sidebar>

  <nb-layout-column>
    <ng-content select="router-outlet"></ng-content>
  </nb-layout-column>

  <nb-layout-footer fixed>
    <ngx-footer></ngx-footer>
  </nb-layout-footer>
</nb-layout> ` })

    export class OneColumnLayoutComponent implements AfterViewInit {
     @ViewChild(NbLayoutComponent, { static: false }) layout: NbLayoutComponent;

    constructor(
     @Inject(PLATFORM_ID) private platformId,
     private windowModeBlockScrollService: WindowModeBlockScrollService) {}

   ngAfterViewInit() {
    if (isPlatformBrowser(this.platformId)) {
      this.windowModeBlockScrollService.register(this.layout);
    }
  }
}