.row.equal-height {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

    .row.equal-height > [class*='col'] {
        display: flex;
        flex-direction: column;
    }

        .row.equal-height.justify-content-start,
        .row.equal-height > [class*='col'].justify-content-start {
            -webkit-box-pack: start !important;
            -ms-flex-pack: start !important;
            justify-content: flex-start !important;
        }

        .row.equal-height.justify-content-end,
        .row.equal-height > [class*='col'].justify-content-end {
            -webkit-box-pack: end !important;
            -ms-flex-pack: end !important;
            justify-content: flex-end !important;
        }

        .row.equal-height.justify-content-center,
        .row.equal-height > [class*='col'].justify-content-center {
            -webkit-box-pack: center !important;
            -ms-flex-pack: center !important;
            justify-content: center !important;
        }

        .row.equal-height.align-items-start,
        .row.equal-height > [class*='col'].align-items-start {
            -webkit-box-align: start !important;
            -ms-flex-align: start !important;
            align-items: flex-start !important;
        }

        .row.equal-height.align-items-end,
        .row.equal-height > [class*='col'].align-items-end {
            -webkit-box-align: end !important;
            -ms-flex-align: end !important;
            align-items: flex-end !important;
        }

        .row.equal-height.align-items-center,
        .row.equal-height > [class*='col'].align-items-center {
            -webkit-box-align: center !important;
            -ms-flex-align: center !important;
            align-items: center !important;
        }

.col, .col-auto, .col-sm-auto, .col-md-auto,
.col-lg-auto, .col-xl-auto {
    position: relative;
    min-height: 1px;
    padding-right: 15px;
    padding-left: 15px;
}

.col {
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -webkit-box-flex: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
    max-width: 100%;
}

.col-auto {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    width: auto;
    max-width: none;
}

.mt-auto {
    margin-top: auto !important;
}

@media (min-width: 1200px) {
    .col-xl-auto {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
        flex: 0 0 auto;
        width: auto;
        max-width: none;
    }
}

@media (min-width: 992px) {
    .col-lg-auto {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
        flex: 0 0 auto;
        width: auto;
        max-width: none;
    }
}

@media (min-width: 768px) {
    .col-md-auto {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
        flex: 0 0 auto;
        width: auto;
        max-width: none;
    }
}

@media (min-width: 576px) {
    .col-sm-auto {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
        flex: 0 0 auto;
        width: auto;
        max-width: none;
    }
}