JSFiddle - React, Tailwind, and code Playground

JavaScript

const tweets = document.querySelectorAll('article');

for (const tweet of tweets) {
  tweet.innerHTML = [...tweet.innerHTML].map(char => {
    const codePoint = char.codePointAt(0)
    const isInvisible = 0xe0000 < codePoint && codePoint < 0xe007f;
    if (!isInvisible) return char;

    const realChar = String.fromCodePoint(codePoint - 0xe0000);
    return `
      <span style="color:black;text-shadow: #8787c3 1px 0, #8787c3 -1px 0, #8787c3 0 1px, #8787c3 0 -1px, #8787c3 1px 1px, #8787c3 -1px 1px, #8787c3 1px -1px, #8787c3 -1px -1px;">
        ${realChar}
      </span>
    `;
  }).join('')
}