.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: calc(1.5em + 0.75rem + 2px);
    position: absolute;
    top: 1px;
    right: 1px;
    width: 20px;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #444;
    line-height: calc(1.5em + .75rem);
}
.select2-container--default .select2-selection--single {
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: .25re;
}
.select2-container .select2-selection--single {
    box-sizing: border-box;
    cursor: pointer;
    display: block;
    height: calc(1.5em + 0.75rem + 2px);
    user-select: none;
    -webkit-user-select: none;
}