Content script adding p element to show latest commit

contentScript.ts

try {
    const authorAnchor = document.querySelector('.commit-author') as HTMLAnchorElement;
    const commit = (authorAnchor.nextElementSibling as HTMLAnchorElement).href.split('commit/')[1];

    const p = document.createElement('p');
    p.classList.add('my-commit-msg');
    p.innerText = `Latest commit was: ${commit}`;
    anchorMyBtn.parentNode.parentNode.prepend(p);

} catch {
    console.error('Error retrieving last commit');
}

contentStyle.scss

.my-commit-msg {
    text-align: center;
    padding: 10px;
    margin-bottom: 25px;
    border: 1px solid transparent;
    border-radius: 5px;
    background-color: aquamarine;
    color: #333;
    box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}