.select2-box {
    width: 100%;
    max-width: 250px;
}

span.select2-container {
    margin-bottom: 10px;
}

.select2-container--default .select2-selection--single .select2-selection__clear {
    margin: 5px;
    margin-top: 2px;
}

.select2-container--default .select2-selection--single {
    height: 30px;
}

    .select2-container--default .select2-selection--single .select2-selection__rendered {
        line-height: 30px;
        height: 28px;
    }