.select2-container {
    font-family: Arial, sans-serif;
    border-radius: 8px;
    border: 2px solid dodgerblue;
}

.select2-selection{
    width: 17vw;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice{
    background-color: aliceblue;
}

.select2-container--default .select2-results__option--selected {
    background-color: #e0f8ff;
}

.select2-selection--multiple:before {
    content: "";
    position: absolute;
    right: 7px;
    top: 42%;
    border-top: 5px solid #888;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
}