client/src/components/Contacts/Contacts.css

.contacts {
    background-color: var(--PRIMARY-COLOR);
    color: white;
    width: 300px;

    display: flex;
    flex-direction: column;
    align-items: center;
    
    overflow-y: scroll;
}

.contacts>* {
    flex-shrink: 0;
}

.contacts::-webkit-scrollbar{
    background-color: transparent;
    margin-right:4px;
    width:9px;
}

.contacts::-webkit-scrollbar-thumb{
    background-color: rgb(149, 149, 149);
    border-radius: 20px;
    /* filter:saturate(0); */
}