.custom-dropdown-area {
    display: inline-block;
    margin: 0;
    position: relative;
    min-width: 150px;
}

.custom-dropdown-button {
    text-align: left;
    background-color: #fafafa;
    background-image: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgeD0iMTJweCIgeT0iMHB4IiB3aWR0aD0iMjRweCIgaGVpZ2h0PSIzcHgiIHZpZXdCb3g9IjAgMCA2IDMiIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDYgMyIgeG1sOnNwYWNlPSJwcmVzZXJ2ZSI+PHBvbHlnb24gcG9pbnRzPSI1Ljk5MiwwIDIuOTkyLDMgLTAuMDA4LDAgIi8+PC9zdmc+);
    background-position: 100% center;
    background-repeat: no-repeat;
    border: 1px solid #cccccc;
    border-radius: 4px;
    padding: 0.5rem;
    padding-left: 10px;
    padding-top: 10px;
    padding-right: 2rem;
    font-size: 0.875rem;
    color: rgba(0, 0, 0, 0.75);
    line-height: normal;
    height: 2.3125rem;
    width: 100%;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

    .custom-dropdown-button.radius {
        border-radius: 3px;
    }

.custom-dropdown-area:hover .custom-dropdown-button {
    background-color: #f3f3f3;
    border-color: #999999;
    color: rgba(0, 0, 0, 0.75);
}

.custom-dropdown-area:hover .custom-dropdown-options {
    background-color: #f3f3f3;
    border-color: #999999;
}

.custom-dropdown-button:disabled {
    background-color: #dddddd;
    cursor: default;
}

.custom-dropdown-options {
    background-color: #fafafa;
    margin-top: -3px;
    max-width: 100%;
    width: 100% !important;
    max-height: 23rem;
    overflow-y: auto;
}

    .custom-dropdown-options li {
        padding: 0.5rem;
    }

        .custom-dropdown-options li.disabled {
            color: #ccc;
        }

            .custom-dropdown-options li.disabled:hover {
                background: #f3f3f3;
            }

        .custom-dropdown-options li.select-all {
            padding: 0.35rem;
        }

            .custom-dropdown-options li.select-all:hover {
                background: #f3f3f3;
            }

        .custom-dropdown-options li.selected:after {
            content: '✓';
            float: right;
        }

    .custom-dropdown-options:before, .custom-dropdown-options:after {
        display: none;
    }

    .custom-dropdown-options span.button-select-all {
        width: 100%;
        margin: 0;
        padding: 7px;
        font-size: 9px;
    }

@media only screen and (max-width: 40em) {
    .custom-dropdown-options {
        margin-left: -8px !important;
    }
}