nginx-proxy-manager/frontend/scss/selectize.scss

.selectize-dropdown-header {
    position: relative;
    padding: 5px 8px;
    background: #f8f8f8;
    border-bottom: 1px solid #d0d0d0;
    -webkit-border-radius: 3px 3px 0 0;
    -moz-border-radius: 3px 3px 0 0;
    border-radius: 3px 3px 0 0;
}

.selectize-dropdown-header-close {
    position: absolute;
    top: 50%;
    right: 8px;
    margin-top: -12px;
    font-size: 20px !important;
    line-height: 20px;
    color: #303030;
    opacity: 0.4;
}

.selectize-dropdown-header-close:hover {
    color: #000000;
}

.selectize-dropdown.plugin-optgroup_columns .optgroup {
    float: left;
    border-top: 0 none;
    border-right: 1px solid #f2f2f2;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.selectize-dropdown.plugin-optgroup_columns .optgroup:last-child {
    border-right: 0 none;
}

.selectize-dropdown.plugin-optgroup_columns .optgroup:before {
    display: none;
}

.selectize-dropdown.plugin-optgroup_columns .optgroup-header {
    border-top: 0 none;
}

.selectize-control.plugin-remove_button [data-value] {
    position: relative;
    padding-right: 24px !important;
}

.selectize-control.plugin-remove_button [data-value] .remove {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    display: inline-block;
    width: 17px;
    padding: 2px 0 0 0;
    font-size: 12px;
    font-weight: bold;
    color: inherit;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    border-left: 1px solid #0073bb;
    -webkit-border-radius: 0 2px 2px 0;
    -moz-border-radius: 0 2px 2px 0;
    border-radius: 0 2px 2px 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.selectize-control.plugin-remove_button [data-value] .remove:hover {
    background: rgba(0, 0, 0, 0.05);
}

.selectize-control.plugin-remove_button [data-value].active .remove {
    border-left-color: #00578d;
}

.selectize-control.plugin-remove_button .disabled [data-value] .remove:hover {
    background: none;
}

.selectize-control.plugin-remove_button .disabled [data-value] .remove {
    border-left-color: #aaaaaa;
}

.selectize-control {
    position: relative;
}

.selectize-dropdown {
    font-family: inherit;
    font-size: 13px;
    -webkit-font-smoothing: inherit;
    line-height: 18px;
    color: #303030;
}

.selectize-control.single {
    display: inline-block;
    cursor: text;
    background: #ffffff;
}

.selectize-dropdown {
    position: absolute;
    z-index: 10;
    margin: -1px 0 0 0;
    background: #ffffff;
    border: 1px solid #d0d0d0;
    border-top: 0 none;
    -webkit-border-radius: 0 0 3px 3px;
    -moz-border-radius: 0 0 3px 3px;
    border-radius: 0 0 3px 3px;
    -webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.selectize-dropdown [data-selectable] {
    overflow: hidden;
    cursor: pointer;
}

.selectize-dropdown [data-selectable] .highlight {
    background: rgba(125, 168, 208, 0.2);
    -webkit-border-radius: 1px;
    -moz-border-radius: 1px;
    border-radius: 1px;
}

.selectize-dropdown [data-selectable],
.selectize-dropdown .optgroup-header {
    padding: 5px 8px;
}

.selectize-dropdown .optgroup:first-child .optgroup-header {
    border-top: 0 none;
}

.selectize-dropdown .optgroup-header {
    color: #303030;
    cursor: default;
    background: #ffffff;
}

.selectize-dropdown .active {
    color: #495c68;
    background-color: #f5fafd;
}

.selectize-dropdown .active.create {
    color: #495c68;
}

.selectize-dropdown .create {
    color: rgba(48, 48, 48, 0.5);
}

.selectize-dropdown-content {
    max-height: 200px;
    overflow-x: hidden;
    overflow-y: auto;

    .title {
        font-weight: bold;
    }

    .description {
        padding-left: 16px;
    }
}

.selectize-dropdown .optgroup-header {
    padding-top: 7px;
    font-size: 0.85em;
    font-weight: bold;
}

.selectize-dropdown .optgroup {
    border-top: 1px solid #f0f0f0;
}

.selectize-dropdown .optgroup:first-child {
    border-top: 0 none;
}

.custom-select {
    height: auto;
}