.input-prepend.input-block-level {
  display: table;
  width: 100%;
}

.input-prepend.input-block-level .add-on {
  display: table-cell;
  width: 24px;
  vertical-align: middle;
}

.input-prepend.input-block-level > input {
  box-sizing: border-box;
  height: 30px;
  display: table-cell;
  width: 100%;
  border-left-style: none;
}

@media (max-width: 979px) {
  .navbar-fixed-top, .navbar-fixed-bottom {
    position: fixed;
  }

  .navbar-fixed-top {
    margin-bottom: 18px;
  }

  .navbar-fixed-bottom {
    margin-top: 18px;
  }

  .navbar-fixed-top .nav-collapse .nav  {
    padding-left: 20px;
    padding-right: 20px;
  }

  .navbar-fixed-bottom .nav {
    padding-left: 10px;
    padding-right: 10px;
  }

  .navbar-fixed-top .brand {
    margin-left: 20px;
  }

  .navbar-fixed-top .btn-navbar {
    margin-right: 20px;
  }
}