bootstrap4.css
@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .col-sm {
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1;
    max-width: 100%;
  }
  .col-sm-auto {
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    width: auto;
    max-width: 100%;
  }
  .col-sm-1 {
    -ms-flex: 0 0 8.333333%;
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-sm-2 {
    -ms-flex: 0 0 16.666667%;
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-sm-3 {
    -ms-flex: 0 0 25%;
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-sm-4 {
    -ms-flex: 0 0 33.333333%;
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-sm-5 {
    -ms-flex: 0 0 41.666667%;
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-sm-6 {
    -ms-flex: 0 0 50%;
    flex: 0 0 50%;
bootstrap4.css
@media (min-width: 576px) {
  .form-inline label {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    margin-bottom: 0;
  }
  .form-inline .form-group {
    display: -ms-flexbox;
    display: flex;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
    -ms-flex-align: center;
    align-items: center;
    margin-bottom: 0;
  }
  .form-inline .form-control {
    display: inline-block;
    width: auto;
    vertical-align: middle;
  }
  .form-inline .form-control-plaintext {
    display: inline-block;
  }
  .form-inline .input-group,
  .form-inline .custom-select {
    width: auto;
  }
  .form-inline .form-check {
    display: -ms-flexbox;
  
bootstrap4.css
@media (min-width: 576px) {
  .dropdown-menu-sm-left {
    right: auto;
    left: 0;
  }
  .dropdown-menu-sm-right {
    right: 0;
    left: auto;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .navbar-expand-sm {
    -ms-flex-flow: row nowrap;
    flex-flow: row nowrap;
    -ms-flex-pack: start;
    justify-content: flex-start;
  }
  .navbar-expand-sm .navbar-nav {
    -ms-flex-direction: row;
    flex-direction: row;
  }
  .navbar-expand-sm .navbar-nav .dropdown-menu {
    position: absolute;
  }
  .navbar-expand-sm .navbar-nav .nav-link {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
  }
  .navbar-expand-sm > .container,
  .navbar-expand-sm > .container-fluid {
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
  }
  .navbar-expand-sm .navbar-collapse {
    display: -ms-flexbox !important;
    display: flex !important;
    -ms-flex-preferred-size: auto;
    flex-basis: auto;
  }
  .navbar-expand-sm .navbar-toggler {
    display: none;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .card-deck {
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
    margin-right: -15px;
    margin-left: -15px;
  }
  .card-deck .card {
    display: -ms-flexbox;
    display: flex;
    -ms-flex: 1 0 0%;
    flex: 1 0 0%;
    -ms-flex-direction: column;
    flex-direction: column;
    margin-right: 15px;
    margin-bottom: 0;
    margin-left: 15px;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .card-group {
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
  }
  .card-group > .card {
    -ms-flex: 1 0 0%;
    flex: 1 0 0%;
    margin-bottom: 0;
  }
  .card-group > .card + .card {
    margin-left: 0;
    border-left: 0;
  }
  .card-group > .card:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }
  .card-group > .card:not(:last-child) .card-img-top,
  .card-group > .card:not(:last-child) .card-header {
    border-top-right-radius: 0;
  }
  .card-group > .card:not(:last-child) .card-img-bottom,
  .card-group > .card:not(:last-child) .card-footer {
    border-bottom-right-radius: 0;
  }
  .card-group > .card:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }
  .card-group >
bootstrap4.css
@media (min-width: 576px) {
  .card-columns {
    -webkit-column-count: 3;
    -moz-column-count: 3;
    column-count: 3;
    -webkit-column-gap: 1.25rem;
    -moz-column-gap: 1.25rem;
    column-gap: 1.25rem;
    orphans: 1;
    widows: 1;
  }
  .card-columns .card {
    display: inline-block;
    width: 100%;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .jumbotron {
    padding: 4rem 2rem;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .list-group-horizontal-sm {
    -ms-flex-direction: row;
    flex-direction: row;
  }
  .list-group-horizontal-sm .list-group-item {
    margin-right: -1px;
    margin-bottom: 0;
  }
  .list-group-horizontal-sm .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-sm .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: 576px) {
  .modal-dialog {
    max-width: 500px;
    margin: 1.75rem auto;
  }
  .modal-dialog-scrollable {
    max-height: calc(100% - 3.5rem);
  }
  .modal-dialog-scrollable .modal-content {
    max-height: calc(100vh - 3.5rem);
  }
  .modal-dialog-centered {
    min-height: calc(100% - 3.5rem);
  }
  .modal-dialog-centered::before {
    height: calc(100vh - 3.5rem);
  }
  .modal-sm {
    max-width: 300px;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .d-sm-none {
    display: none !important;
  }
  .d-sm-inline {
    display: inline !important;
  }
  .d-sm-inline-block {
    display: inline-block !important;
  }
  .d-sm-block {
    display: block !important;
  }
  .d-sm-table {
    display: table !important;
  }
  .d-sm-table-row {
    display: table-row !important;
  }
  .d-sm-table-cell {
    display: table-cell !important;
  }
  .d-sm-flex {
    display: -ms-flexbox !important;
    display: flex !important;
  }
  .d-sm-inline-flex {
    display: -ms-inline-flexbox !important;
    display: inline-flex !important;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .flex-sm-row {
    -ms-flex-direction: row !important;
    flex-direction: row !important;
  }
  .flex-sm-column {
    -ms-flex-direction: column !important;
    flex-direction: column !important;
  }
  .flex-sm-row-reverse {
    -ms-flex-direction: row-reverse !important;
    flex-direction: row-reverse !important;
  }
  .flex-sm-column-reverse {
    -ms-flex-direction: column-reverse !important;
    flex-direction: column-reverse !important;
  }
  .flex-sm-wrap {
    -ms-flex-wrap: wrap !important;
    flex-wrap: wrap !important;
  }
  .flex-sm-nowrap {
    -ms-flex-wrap: nowrap !important;
    flex-wrap: nowrap !important;
  }
  .flex-sm-wrap-reverse {
    -ms-flex-wrap: wrap-reverse !important;
    flex-wrap: wrap-reverse !important;
  }
  .flex-sm-fill {
bootstrap4.css
@media (min-width: 576px) {
  .float-sm-left {
    float: left !important;
  }
  .float-sm-right {
    float: right !important;
  }
  .float-sm-none {
    float: none !important;
  }
}
bootstrap4.css
@media (min-width: 576px) {
  .m-sm-0 {
    margin: 0 !important;
  }
  .mt-sm-0,
  .my-sm-0 {
    margin-top: 0 !important;
  }
  .mr-sm-0,
  .mx-sm-0 {
    margin-right: 0 !important;
  }
  .mb-sm-0,
  .my-sm-0 {
    margin-bottom: 0 !important;
  }
  .ml-sm-0,
  .mx-sm-0 {
    margin-left: 0 !important;
  }
  .m-sm-1 {
    margin: 0.25rem !important;
  }
  .mt-sm-1,
  .my-sm-1 {
    margin-top: 0.25rem !important;
  }
  .mr-sm-1,
  .mx-sm-1 {
    margin-right: 0.25rem !important;
  }
  .mb-sm-1,
  .my-sm-1 {
    margin-bottom: 0.25rem !important;
  }
  .ml-sm-1,
  .mx-sm-1 {
    margin-left: 0.25rem !important;
  }
  .m-sm-2 {
    margin: 0.5rem !important;
  }
  .mt-sm-2,
  .my-sm-2 {
    margin-top: 0.5rem !important;
  }
  .mr-sm-2,
  .mx-sm-2 {
    margin-right: 0.5rem !important;
 
bootstrap4.css
@media (min-width: 576px) {
  .text-sm-left {
    text-align: left !important;
  }
  .text-sm-right {
    text-align: right !important;
  }
  .text-sm-center {
    text-align: center !important;
  }
}