I have a
<span class="go"> 100,0 </span>
<span class="go"> 0,0 </span>
And want to format this span as ITALIC only when the value is 0,0 using CSS.
How can I do that?
As Madara Uchiha already mentioned, this is not possible using only CSS.
But you could use a data attribute like <span class="go" data-value="0,0"> 0,0 </span>
and query it in CSS with the attribute selector: [data-value="0,0"] { ... }
(assuming you have access to the markup).