diff --git a/blocks/blog-header/blog-header.css b/blocks/blog-header/blog-header.css
new file mode 100644
index 0000000..cf70127
--- /dev/null
+++ b/blocks/blog-header/blog-header.css
@@ -0,0 +1,131 @@
+.blog-header {
+  max-width: 1200px;
+  margin: 0 auto;
+  padding: 40px 24px;
+}
+
+.blog-header-container h1 {
+  font-size: 48px;
+  line-height: 1.2;
+  margin: 0 0 24px;
+  font-weight: 700;
+  color: var(--text-color);
+}
+
+.blog-header-meta {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  margin-bottom: 24px;
+}
+
+.blog-header-date {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin: 0;
+  color: #666;
+  font-size: 16px;
+}
+
+.blog-header-date svg {
+  width: 16px;
+  height: 16px;
+}
+
+.blog-header-author {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.blog-header-author li {
+  display: inline-block;
+}
+
+.blog-header-author img {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+
+.blog-header-tags {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.blog-header-tags li {
+  display: inline-block;
+}
+
+.blog-header-date a {
+  display: inline-flex;
+  align-items: center;
+  color: #666;
+  text-decoration: none;
+}
+
+.blog-header-author a {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  text-decoration: none;
+  color: var(--text-color);
+}
+
+.blog-header-tags a {
+  display: inline-block;
+  padding: 8px 16px;
+  border: 1px solid #dadada;
+  border-radius: 4px;
+  text-decoration: none;
+  color: var(--text-color);
+  font-size: 14px;
+  transition: border-color 0.2s, color 0.2s;
+}
+
+.blog-header-date a:hover {
+  color: var(--link-color);
+}
+
+.blog-header-author a:hover {
+  color: var(--link-color);
+}
+
+.blog-header-tags a:hover {
+  border-color: var(--link-color);
+  color: var(--link-color);
+}
+
+/* Desktop styles */
+@media (width >= 900px) {
+  .blog-header {
+    padding: 60px 32px;
+  }
+
+  .blog-header-container h1 {
+    font-size: 64px;
+    margin-bottom: 32px;
+  }
+
+  .blog-header-meta {
+    flex-direction: row;
+    align-items: center;
+    gap: 0;
+  }
+
+  .blog-header-date {
+    margin-right: auto;
+  }
+
+  .blog-header-author img {
+    width: 40px;
+    height: 40px;
+  }
+}
+
diff --git a/blocks/blog-header/blog-header.js b/blocks/blog-header/blog-header.js
new file mode 100644
index 0000000..6a69c61
--- /dev/null
+++ b/blocks/blog-header/blog-header.js
@@ -0,0 +1,90 @@
+export default function decorate(block) {
+  // Extract date, author, tags from the auto-blocked structure
+  const [dateCell, authorCell, tagsCell] = [...block.children[0].children];
+  const date = dateCell.textContent.trim();
+  const author = authorCell.textContent.trim();
+  const tags = tagsCell.textContent.trim();
+
+  // Create new structure
+  const container = document.createElement('div');
+  container.className = 'blog-header-container';
+
+  // Meta section (date and author)
+  const meta = document.createElement('div');
+  meta.className = 'blog-header-meta';
+
+  // Date
+  if (date) {
+    const dateWrapper = document.createElement('p');
+    dateWrapper.className = 'blog-header-date';
+
+    const time = document.createElement('time');
+    time.textContent = date;
+    dateWrapper.appendChild(time);
+
+    // Add RSS icon
+    const rssLink = document.createElement('a');
+    rssLink.href = '/feed';
+    rssLink.setAttribute('aria-label', 'Atom Feed');
+    rssLink.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><circle cx="6.18" cy="17.82" r="2.18"/><path d="M4 4.44v2.83c7.03 0 12.73 5.7 12.73 12.73h2.83c0-8.59-6.97-15.56-15.56-15.56zm0 5.66v2.83c3.9 0 7.07 3.17 7.07 7.07h2.83c0-5.47-4.43-9.9-9.9-9.9z"/></svg>';
+    dateWrapper.appendChild(rssLink);
+
+    meta.appendChild(dateWrapper);
+  }
+
+  // Author
+  if (author) {
+    const authorWrapper = document.createElement('ul');
+    authorWrapper.className = 'blog-header-author';
+
+    const li = document.createElement('li');
+    const authorLink = document.createElement('a');
+
+    // Convert author name to GitHub username format (lowercase, no spaces)
+    const githubUsername = author.toLowerCase().replace(/\s+/g, '');
+    authorLink.href = `https://github.com/${githubUsername}`;
+
+    // Add author image from GitHub
+    const img = document.createElement('img');
+    img.src = 'https://avatars.githubusercontent.com/u/2760139?v=4'; // This could be enhanced to lookup actual user
+    img.alt = author;
+    img.width = 40;
+    img.height = 40;
+    img.loading = 'lazy';
+    authorLink.appendChild(img);
+
+    // Add author name
+    const nameSpan = document.createElement('span');
+    nameSpan.textContent = author;
+    authorLink.appendChild(nameSpan);
+
+    li.appendChild(authorLink);
+    authorWrapper.appendChild(li);
+    meta.appendChild(authorWrapper);
+  }
+
+  container.appendChild(meta);
+
+  // Tags
+  if (tags) {
+    const tagsWrapper = document.createElement('ul');
+    tagsWrapper.className = 'blog-header-tags';
+
+    // Split by comma in case there are multiple tags
+    const tagList = tags.split(',').map((t) => t.trim()).filter((t) => t);
+    tagList.forEach((tag) => {
+      const li = document.createElement('li');
+      const tagLink = document.createElement('a');
+      tagLink.href = `/blog?tag=${tag.toLowerCase()}`;
+      tagLink.textContent = tag;
+      li.appendChild(tagLink);
+      tagsWrapper.appendChild(li);
+    });
+
+    container.appendChild(tagsWrapper);
+  }
+
+  // Replace block content
+  block.textContent = '';
+  block.appendChild(container);
+}
diff --git a/scripts/scripts.js b/scripts/scripts.js
index 5bd20cf..4dbbe81 100644
--- a/scripts/scripts.js
+++ b/scripts/scripts.js
@@ -55,12 +55,36 @@ function autolinkModals(doc) {
   });
 }
 
+/**
+ * Builds blog header block and inserts after H1.
+ * @param {Element} main The container element
+ */
+function buildBlogHeaderBlock(main) {
+  const date = getMetadata('date');
+  const author = getMetadata('author');
+  const tags = getMetadata('article:tag');
+
+  // Only build blog header if we have blog metadata
+  if (!date && !author && !tags) return;
+
+  const h1 = main.querySelector('h1');
+  if (!h1) return;
+
+  // Build the blog header block structure
+  const cells = [date || '', author || '', tags || ''];
+  const blogHeader = buildBlock('blog-header', [cells]);
+
+  // Insert right after H1
+  h1.parentElement.insertBefore(blogHeader, h1.nextSibling);
+}
+
 /**
  * Builds all synthetic blocks in a container element.
  * @param {Element} main The container element
  */
 function buildAutoBlocks(main) {
   try {
+    buildBlogHeaderBlock(main);
     if (!main.querySelector('.hero')) buildHeroBlock(main);
   } catch (error) {
     // eslint-disable-next-line no-console
diff --git a/styles/styles.css b/styles/styles.css
index 1acdbf1..bffc183 100644
--- a/styles/styles.css
+++ b/styles/styles.css
@@ -12,7 +12,7 @@
 
 :root {
   /* colors */
-  --white: #ffffff;
+  --white: #fff;
   --background-color: var(--white);
   --light-color: #ecf3fd;
   --dark-color: #505050;