src/main/resources/static/css/offcanvas.css

    /*
     * Style tweaks
     * --------------------------------------------------
     */
    html,
    body {
      overflow-x: hidden; /* Prevent scroll on narrow devices */
    }
    body {
      padding-top: 70px;
    }
    footer {
      padding: 30px 0;
    }

    /*
     * Off Canvas
     * --------------------------------------------------
     */
    @media screen and (max-width: 767px) {
      .row-offcanvas {
        position: relative;
        -webkit-transition: all .25s ease-out;
             -o-transition: all .25s ease-out;
                transition: all .25s ease-out;
      }

      .row-offcanvas-right {
        right: 0;
      }

      .row-offcanvas-left {
        left: 0;
      }

      .row-offcanvas-right
      .sidebar-offcanvas {
        right: -50%; /* 6 columns */
      }

      .row-offcanvas-left
      .sidebar-offcanvas {
        left: -50%; /* 6 columns */
      }

      .row-offcanvas-right.active {
        right: 50%; /* 6 columns */
      }

      .row-offcanvas-left.active {
        left: 50%; /* 6 columns */
      }

      .sidebar-offcanvas {
        position: absolute;
        top: 0;
        width: 50%; /* 6 columns */
      }
    }