.app {
  header {
    // Navigation Bar
    nav {
      //.navbar-pf-vertical .navbar-toggle {
      .toggle-nav {
        background-color: rgba(0, 0, 0, 0);
        background-image: none;
        border: 0;
        //border: 1px solid #363636;
        border-radius: 1px;
        display: block;
        float: left;
        margin: 9px 15px;
        padding: 9px 10px;
        position: relative;

        .icon-bar {
          background: #d1d1d1;
          border-radius: 1px;
          display: block;
          height: 2px;
          margin-top: 4px;
          width: 22px;
        }

        .sr-only {
          position: absolute;
          width: 1px;
          height: 1px;
          margin: -1px;
          padding: 0;
          overflow: hidden;
          clip: rect(0, 0, 0, 0);
          border: 0;
        }
      }
    }
  }

  // Main body
  main {}

  // <div> container when sidebar is collapsed
  .nav-pf-vertical.hidden-icons-pf.collapsed {}
}

.app {
  header {
    // Navigation Bar
    nav {
      //.navbar-pf-vertical .navbar-toggle {
      .toggle-nav {
        background-color: rgba(0, 0, 0, 0);
        background-image: none;
        border: 0;
        //border: 1px solid #363636;
        border-radius: 1px;
        display: block;
        float: left;
        margin: 9px 15px;
        padding: 9px 10px;
        position: relative;

        &:focus {
          outline: -webkit-focus-ring-color 0;
          outline-color: transparent;
          outline-style: none;
          outline-width: 0;
        }

        .icon-bar {
          background: #d1d1d1;
          border-radius: 1px;
          display: block;
          height: 2px;
          margin-top: 4px;
          width: 22px;
        }

        .sr-only {
          position: absolute;
          width: 1px;
          height: 1px;
          margin: -1px;
          padding: 0;
          overflow: hidden;
          clip: rect(0, 0, 0, 0);
          border: 0;
        }
      }
    }
  }

  // Main body
  main {}

  // <div> container when sidebar is collapsed
  .nav-pf-vertical.hidden-icons-pf.collapsed {}
}

Update toggle CSS to rm focus styling
Update toggle CSS to rm focus styling
