Free online HTML Editor and Viewer

<!DOCTYPE html>
<html>
<head>
<title>Test</title>
</head>
<body>

<h1>HTML Editor + Live Viewer</h1>
<p> live preview</p>

<b:if cond='data:blog.url == data:blog.homepageUrl'>

/* skeleton */
.skeleton .poster,.skeleton .movie-title{
background:#ddd;position:relative;overflow:hidden
}
.skeleton .poster{height:250px}
.skeleton .movie-title{height:20px;margin:10px}
.skeleton::after{
content:"";position:absolute;top:0;left:-150%;
width:100%;height:100%;
background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);
animation:shimmer 1.2s infinite
}
@keyframes shimmer{100%{left:150%}}

#loadMoreBtn{
padding:10px 25px;background:#e50914;color:#fff;
border:none;border-radius:5px;cursor:pointer;font-size:16px
}
</style>

/* STEP 1: LOAD POSTS ONLY ONCE (10 POSTS) */
function loadPosts(){

let script = document.createElement("script");
  script.src = "https://www.marketing2advertising.com/feeds/posts/default?alt=json-in-script&max-results=10&callback=renderPosts";
  document.body.appendChild(script);
}

/* STEP 2: LOAD PAGES (INFINITE SCROLL) */
function loadPages(){

if(loading) return;
  loading = true;

showSkeleton();

let script = document.createElement("script");
  script.src = "https://www.marketing2advertising.com/feeds/pages/default?alt=json-in-script"
    + "&start-index=" + pageStart
    + "&max-results=" + pageMax
    + "&callback=renderPages";

document.body.appendChild(script);

pageStart += pageMax;
}

/* RENDER POSTS (NO SCROLL) */
function renderPosts(json){

let container = document.getElementById("f2ured-m3ie-g5d");

json.feed.entry.forEach(post=>{
    container.appendChild(createCard(post));
  });

}

/* RENDER PAGES (SCROLL ENABLED) */
function renderPages(json){

removeSkeleton();

let container = document.getElementById("f2ured-m3ie-g5d");

if(!json.feed.entry){
    document.getElementById("loadMoreBtn").style.display="none";
    loading = false;
    return;
  }

json.feed.entry.forEach(post=>{
    container.appendChild(createCard(post));
  });

loading = false;
}

/* CARD BUILDER */
function createCard(post){

let title = post.title.$t;

let link = post.link.find(l=>l.rel==="alternate").href;

let img = post.media$thumbnail
    ? post.media$thumbnail.url.replace(/\/s[0-9]+(-c)?\//,"/s1600/")
    : "https://via.placeholder.com/400x250";

let el = document.createElement("a");
  el.href = link;
  el.className = "movie-card";

el.innerHTML = `
    <div class="poster">
      <img src="${img}" loading="lazy">
      <div class="play-button">►</div>
    </div>
    <div class="movie-title">${title}</div>
  `;

return el;
}

/* INFINITE SCROLL ONLY FOR PAGES */
window.addEventListener("scroll", function(){

if(loading) return;

if(window.innerHeight + window.scrollY >= document.body.offsetHeight - 300){
    loadPages();
  }

});

/* BUTTON */
document.addEventListener("DOMContentLoaded", function(){

loadPosts();   // 🔒 fixed 10 posts
  loadPages();   // ♾ pages start loading

document.getElementById("loadMoreBtn").onclick = loadPages;
});

/* SKELETON */
function showSkeleton(){
  let c = document.getElementById("f2ured-m3ie-g5d");
  for(let i=0;i<4;i++){
    let s = document.createElement("div");
    s.className="movie-card skeleton";
    s.innerHTML='<div class="poster"></div><div class="movie-title"></div>';
    c.appendChild(s);
  }
}

function removeSkeleton(){
  document.querySelectorAll(".skeleton").forEach(e=>e.remove());
}
</script>

</b:if>

</div>