```
<div class="rightsidebox">
    <div class="item-info-list">
        <p>Model: AIDCU</p>
        <div class="product-details">
            <p></p>
            <div class="price-box"> <span class="regular-price" id="product-price-1617-related">
      <span class="price">$8.99</span></span>
            </div>
            <p></p>
        </div>
    </div>

```

I want to make a style for price and make the color green just in a case it is in the rightbox div and I want to use css , I cannot change the structure because it is a theme and it should not have conflict with other prices in other themes

I can use `div.rightsidebox>div.item-info-list`

but I cannot go further because of the paragraph in there 
how can I solve it? I have weakness in using ">" and multiple classes in each other