bootstrap4.css
@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .col-md {
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1;
    max-width: 100%;
  }
  .col-md-auto {
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    width: auto;
    max-width: 100%;
  }
  .col-md-1 {
    -ms-flex: 0 0 8.333333%;
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-md-2 {
    -ms-flex: 0 0 16.666667%;
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-md-3 {
    -ms-flex: 0 0 25%;
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-md-4 {
    -ms-flex: 0 0 33.333333%;
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-md-5 {
    -ms-flex: 0 0 41.666667%;
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-md-6 {
    -ms-flex: 0 0 50%;
    flex: 0 0 50%;
bootstrap4.css
@media (min-width: 768px) {
  .dropdown-menu-md-left {
    right: auto;
    left: 0;
  }
  .dropdown-menu-md-right {
    right: 0;
    left: auto;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .navbar-expand-md {
    -ms-flex-flow: row nowrap;
    flex-flow: row nowrap;
    -ms-flex-pack: start;
    justify-content: flex-start;
  }
  .navbar-expand-md .navbar-nav {
    -ms-flex-direction: row;
    flex-direction: row;
  }
  .navbar-expand-md .navbar-nav .dropdown-menu {
    position: absolute;
  }
  .navbar-expand-md .navbar-nav .nav-link {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
  }
  .navbar-expand-md > .container,
  .navbar-expand-md > .container-fluid {
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
  }
  .navbar-expand-md .navbar-collapse {
    display: -ms-flexbox !important;
    display: flex !important;
    -ms-flex-preferred-size: auto;
    flex-basis: auto;
  }
  .navbar-expand-md .navbar-toggler {
    display: none;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .list-group-horizontal-md {
    -ms-flex-direction: row;
    flex-direction: row;
  }
  .list-group-horizontal-md .list-group-item {
    margin-right: -1px;
    margin-bottom: 0;
  }
  .list-group-horizontal-md .list-group-item:first-child {
    border-top-left-radius: 0.25rem;
    border-bottom-left-radius: 0.25rem;
    border-top-right-radius: 0;
  }
  .list-group-horizontal-md .list-group-item:last-child {
    margin-right: 0;
    border-top-right-radius: 0.25rem;
    border-bottom-right-radius: 0.25rem;
    border-bottom-left-radius: 0;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .d-md-none {
    display: none !important;
  }
  .d-md-inline {
    display: inline !important;
  }
  .d-md-inline-block {
    display: inline-block !important;
  }
  .d-md-block {
    display: block !important;
  }
  .d-md-table {
    display: table !important;
  }
  .d-md-table-row {
    display: table-row !important;
  }
  .d-md-table-cell {
    display: table-cell !important;
  }
  .d-md-flex {
    display: -ms-flexbox !important;
    display: flex !important;
  }
  .d-md-inline-flex {
    display: -ms-inline-flexbox !important;
    display: inline-flex !important;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .flex-md-row {
    -ms-flex-direction: row !important;
    flex-direction: row !important;
  }
  .flex-md-column {
    -ms-flex-direction: column !important;
    flex-direction: column !important;
  }
  .flex-md-row-reverse {
    -ms-flex-direction: row-reverse !important;
    flex-direction: row-reverse !important;
  }
  .flex-md-column-reverse {
    -ms-flex-direction: column-reverse !important;
    flex-direction: column-reverse !important;
  }
  .flex-md-wrap {
    -ms-flex-wrap: wrap !important;
    flex-wrap: wrap !important;
  }
  .flex-md-nowrap {
    -ms-flex-wrap: nowrap !important;
    flex-wrap: nowrap !important;
  }
  .flex-md-wrap-reverse {
    -ms-flex-wrap: wrap-reverse !important;
    flex-wrap: wrap-reverse !important;
  }
  .flex-md-fill {
bootstrap4.css
@media (min-width: 768px) {
  .float-md-left {
    float: left !important;
  }
  .float-md-right {
    float: right !important;
  }
  .float-md-none {
    float: none !important;
  }
}
bootstrap4.css
@media (min-width: 768px) {
  .m-md-0 {
    margin: 0 !important;
  }
  .mt-md-0,
  .my-md-0 {
    margin-top: 0 !important;
  }
  .mr-md-0,
  .mx-md-0 {
    margin-right: 0 !important;
  }
  .mb-md-0,
  .my-md-0 {
    margin-bottom: 0 !important;
  }
  .ml-md-0,
  .mx-md-0 {
    margin-left: 0 !important;
  }
  .m-md-1 {
    margin: 0.25rem !important;
  }
  .mt-md-1,
  .my-md-1 {
    margin-top: 0.25rem !important;
  }
  .mr-md-1,
  .mx-md-1 {
    margin-right: 0.25rem !important;
  }
  .mb-md-1,
  .my-md-1 {
    margin-bottom: 0.25rem !important;
  }
  .ml-md-1,
  .mx-md-1 {
    margin-left: 0.25rem !important;
  }
  .m-md-2 {
    margin: 0.5rem !important;
  }
  .mt-md-2,
  .my-md-2 {
    margin-top: 0.5rem !important;
  }
  .mr-md-2,
  .mx-md-2 {
    margin-right: 0.5rem !important;
 
bootstrap4.css
@media (min-width: 768px) {
  .text-md-left {
    text-align: left !important;
  }
  .text-md-right {
    text-align: right !important;
  }
  .text-md-center {
    text-align: center !important;
  }
}