You can also use pure javascript to truncate a specific amount of characters in your text using the substring()
method. Here is a quick codepen if someone is interested 
HTML
<p class="target">The quick brown fox jumps over the lazy dog</p>
<p class="target">The quick brown fox jumps over the lazy dog</p>
<p class="target">The quick brown fox jumps over the lazy dog</p>
JavaScript
document.addEventListener("DOMContentLoaded", () => {
const maxCharacters = 9, // whatever max charachter you like to display
targets = document.getElementsByClassName("target");
Array.from(targets).forEach((target) => {
const text = target.textContent,
truncate = text.substring(0, maxCharacters);
target.textContent = `${truncate}...`;
});
});
Result
The quick...
The quick...
The quick...