.multisite-belogin-module-multisitebelogin-status .site-languages {
    display: flex;
    flex-direction: row;
}

.multisite-belogin-module-multisitebelogin-status .site-language {
    height: 3px;
    background: red;
    flex: 0 100%;
    margin: 0 2px;
}
.multisite-belogin-module-multisitebelogin-status .site-language[data-active="true"] {
    background: green;
}