Need help changing color and text elements

Hi,

I am having difficulties with changing default text and colour of some specific elements in CSS.

The site is in staging environment so cannot post here unfortunately. I’ll try to be as specific as possible without it.

1. I would like to remove the word ‘reservieren’:

‘<div class>=”tribe-tickets__rsvp-actions-rsvp”>
<span class=”tribe-common-h2 tribe-common-h6–min-medium”>
Hier reservieren </span>’

2. I would like to change the word ‘Reservieren’ to ‘Anmelden’.

‘<div class>=”tribe-tickets__rsvp-actions-rsvp-going”>
<button class=”tribe-common-c-btn tribe-tickets__rsvp-actions-button-going tribe-common-b1 tribe-common-b2–min-medium” type=”submit”>
Reservieren</button>’

3. On an event’s individual page I would like to change the link colour of navigation elements at the bottom left and right of the page. I would like to change the colour of
both states, normal and mouse on. I have already tried adding the statement ‘colour: #fffffff’ and ‘color: white’ to various elements like ‘tribe-events-nav-previous’ and ‘tribe-events-nav-next.`

Thanks for any help you are able to offer.
Much appreciated.