react-dual_list.css

.list_container {
    display: flex;
    gap: 15px;
    width: 50%;
}

.list-box-main {
    background-color: white;
    width: 200px;
    height: 250px;
}

.select_box {
    width: 100%;
    height: 100%;
    /* To hide scroll bar */
    /* IE and Edge */
    -ms-overflow-style: none;
    /* Firefox */
    scrollbar-width: none;
}

/* Hide scroll bar in Chrome, Safari and Opera */
.select_box::-webkit-scrollbar {
    display: none;
}

.icon_div {
    display: flex;
    flex-direction: column;
    transform: translateY(20%);
    gap: 10px;
}

.icon_box {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    border: 0.5px solid black;
    width: 30px;
    height: 30px;
    border-radius: 3px;
    cursor: pointer;
}

.list-box-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
}

.list-box-container h3{
    margin: 0;
    padding: 0;
    font-weight:normal;
    font-size: large;
}