caloriethingy.com/frontend/web/css/select2.css

.select2-container--bootstrap .select2-selection--single {
    height: calc(1.5em + .75rem + 2px);
    font-size: 1rem;
    line-height: 2.4;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    box-shadow: inset 0 0 0 transparent;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    min-width: 150px;
    display: inline-block;
    width: 100%;
    vertical-align: middle;
}

.select2-container--bootstrap .select2-selection__arrow {
    height: 100%;
    top: 50%;
    transform: translateY(-50%);
    right: 10px;
    color: #495057;
    position: absolute;
}

.select2-container--bootstrap .select2-selection__rendered {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1;
}

.select2-container--bootstrap .select2-selection--single:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.select2-container--bootstrap .select2-selection--single:hover {
    border-color: #80bdff;
}

.select2-container--bootstrap .select2-selection__placeholder {
    color: #6c757d;
}

.select2-container--bootstrap .select2-selection--single .select2-selection__rendered {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-left: 10px;
    padding-right: 10px;
}

.select2-container--bootstrap .select2-search--dropdown .select2-search__field {
    width: 100%;
    box-sizing: border-box;
    padding: .375rem .75rem;
    border: 1px solid #ced4da;
    border-radius: .25rem;
}

.select2-container {
    width: 100% !important;
}

.select2-hidden-accessible {
    border: 0;
    clip: rect(0 0 0 0);
    -webkit-clip-path: inset(50%);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    white-space: nowrap
}

.select2-dropdown {
    background-color: white;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
    display: block;
    position: absolute; 
}

.select2-container--open .select2-dropdown {
    left: 0
}

.select2-container--open .select2-dropdown--above {
    border-bottom: none;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0
}

.select2-container--open .select2-dropdown--below {
    border-top: none;
    border-top-left-radius: 0;
    border-top-right-radius: 0
}

.select2-search--dropdown {
    display: block;
    padding: 4px
}

.select2-search--dropdown .select2-search__field {
    padding: 4px;
    width: 100%;
    box-sizing: border-box
}

.select2-search--dropdown .select2-search__field::-webkit-search-cancel-button {
    -webkit-appearance: none
}

.select2-search--dropdown.select2-search--hide {
    display: none
}

.select2-container--default .select2-search--dropdown .select2-search__field {
    border: 1px solid #aaa
}

.select2-container--classic .select2-search--dropdown .select2-search__field {
    border: 1px solid #aaa;
    outline: 0
}

.select2-container--classic .select2-dropdown {
    background-color: #fff;
    border: 1px solid transparent
}

.select2-container--classic .select2-dropdown--above {
    border-bottom: none
}

.select2-container--classic .select2-dropdown--below {
    border-top: none
}

.select2-container--classic.select2-container--open .select2-dropdown {
    border-color: #5897fb
}

.select2-container--bootstrap .select2-results__option:hover {
    background-color: #f1f1f1;
    color: #333;
    width: 100%;

}

.select2-container--bootstrap .select2-selection__clear {
    margin-right: 2px;
    color: #d9534f;
    font-size: 1.2rem;
    cursor: pointer;
}

.select2-container--bootstrap .select2-selection__clear:hover {
    color: #c9302c;
}

.select2-container--bootstrap .select2-results__option {
    list-style: none;
    padding-left: 20px;
    padding-right: 20px;
    font-size: 1rem;
    color: #333;
    margin-bottom: 8px;
    box-sizing: border-box; 
    white-space: normal;  
}


.select2-results__options {
    margin: 0;
    padding: 5px 0;
}