#nav-boutons::-webkit-scrollbar {
    display: none;
}
#nav-boutons {
    -ms-overflow-style: none;
    scrollbar-width: none;
    background: var(--bg-section);
    border-color: var(--border-soft) !important;
    transition: background .25s ease, border-color .25s ease;
}
#nav-boutons a {
    flex-shrink: 0;
} 

.header-acheteur {
    background-color: var(--bg-section);
    transition: background .25s ease, border-color .25s ease;
    margin-bottom: 10px;
}