tts_app/static/css/layouts/navigation.css

.header {
    display: flex;
    justify-content: space-between;
}

.left-entry {
    display: flex;
    justify-content: space-between;
    align-content: center;
}

.left-entry-item {
    display: flex;
    justify-content: center;
    align-content: center;
}

.center-entry {
    display: flex;
}

.right-entry {
    display: flex;
}