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  margin: 0 auto;     /* centers the whole instruction block on the page */
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  .green-word{ color: #2e9f3f; font-weight: 600; }
  .red-word{ color: #c43b3b; font-weight: 600; }
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   <p>
If two <span class="green-word">green</span> players or two <span class="red-word">red</span> players are paired, neither player will change color
in this round.</p>

   <p>
What happens if a <span class="green-word">green</span> player is paired with a <span class="red-word">red</span> player?</p>

<p>
In this case, the <span class="green-word">green</span> player may change into a <span class="red-word">red</span> player.
The probability of this change depends on the actions that both players choose in this
round.</p>


<div class="wrap">
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    <div class="figure-label"></div>

    <div class="fig">
      <img src="{% static 'change.jpeg' %}" alt="Green player grid" class="fig-img">
    </div>

    <p>
     If both choose action G (8 points), there is a 5% chance that the <span class="green-word">green</span> player
changes into a <span class="red-word">red</span> player in that round.
This means, 1 in 20 <span class="green-word">green</span> players would change on average in this situation, 19 of 20 would
stay <span class="green-word">green</span>.
    </p>
<p>
    If one of the two players chooses action H (40 points) instead, the chance is increased (by 10%) to 15%.
This means, 3 in 20 <span class="green-word">green</span> players would change on average in this situation, 17 of 20 would
stay <span class="green-word">green</span>.
</p>
      <p>
   If both players choose action H, the chance is increased (by another 10%) to 25%.
This means, 5 in 20 <span class="green-word">green</span> players would change on average in this situation, 15 of 20 would
stay <span class="green-word">green</span>.
      </p>
<p>
    As you know, you can receive 8 points or 40 points in each of the 25 rounds.
How much would you earn per point if you are a <span class="green-word">green</span> player at the end of the game?
</p>
 <p>
    Points are converted into bonus money at an exchange rate of: <span style="font-size: 1.2em; font-weight: bold; text-decoration: underline;">10 points equal 5p</span>.
</p>
<p>
    So, 100 points are worth 50p and 200 points are worth £1 of possible bonus payment.
</p>
<p>
    Each choice of action G is potentially worth 4p in the end, each choice of action H is
potentially worth 20p.
</p>

  </div>
</div>

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