@media (max-width: 991px) {
  .navbar-header:not(.nav-stable) {
      float: none;
      min-height: 55px; /* 49px; */
  }
  .navbar-left,.navbar-right {
      float: none !important;
  }
  .navbar-toggle {
      display: block;
  }
  .navbar-collapse {
      border-top: 1px solid transparent;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  }
  .navbar-fixed-top {
		position:fixed;
      top: 0;
      border-width: 0 0 1px;
  }
  .navbar-collapse.collapse {
      display: none!important;
  }
  .navbar-nav {
      float: none!important;
      margin-top: 7.5px;
  }
  .navbar-nav>li {
      float: none;
  }
  .navbar-nav>li>a {
      padding-top: 10px;
      padding-bottom: 10px;
  }
  .collapse.in{
      display:block !important;
  }
}


/* navbar navbar-inverse navbar-fixed-top */

.navbar-inverse .navbar-toggle:focus,
.navbar-inverse .navbar-toggle:hover {
    background-color: transparent;
}

.navbar-inverse .navbar-toggle {
    border: none;
}

.navbar-toggle span.icon-bar {
    transition: all 0.15s;
}

.navbar-toggle span:nth-child(2) {
    transform: rotate(45deg);
    transform-origin: 10% 10%;
}

.navbar-toggle span:nth-child(3) {
    opacity: 0;
}

.navbar-toggle span:nth-child(4) {
    transform: rotate(-45deg);
    transform-origin: 10% 90%;
}

.navbar-toggle.collapsed span:nth-child(2),
.navbar-toggle.collapsed span:nth-child(4) {
    transform: rotate(0);
}

.navbar-toggle.collapsed span:nth-child(3) {
    opacity: 1;
}



.navbar-inverse .navbar-toggle .icon-bar { /* 20220531 */
    background-color: #000;
}


/* 20220614 */
/* .navbar-inverse .navbar-collapse, .navbar-inverse .navbar-form  bootstrap.css */
.navbar-inverse .navbar-collapse {
    border-color:#E1E1E1; /* transparent; */
}