diff --git a/clase11.html b/clase11.html
index 9b43e5b14..03183de20 100644
--- a/clase11.html
+++ b/clase11.html
@@ -4,7 +4,7 @@
   <meta charset="UTF-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Document</title>
+  <title>YardaSale: tienda online de cosas</title>
   <style>
     :root {
       --white: #FFFFFF;
diff --git a/clase13.html b/clase13.html
index f237347d5..1875e936c 100644
--- a/clase13.html
+++ b/clase13.html
@@ -23,6 +23,7 @@
       margin: 0;
       font-family: 'Quicksand', sans-serif;
     }
+    
     .product-detail {
       width: 360px;
       padding: 24px;
diff --git a/clase8.html b/clase8.html
index 7c3d25c9c..7e6198aa2 100644
--- a/clase8.html
+++ b/clase8.html
@@ -23,6 +23,7 @@
       margin: 0;
       font-family: 'Quicksand', sans-serif;
     }
+    
     .mobile-menu {
       padding: 24px;
     }
diff --git a/estilos.css b/estilos.css
new file mode 100644
index 000000000..be98057b8
--- /dev/null
+++ b/estilos.css
@@ -0,0 +1,381 @@
+/* General */
+:root {
+    --white: #FFFFFF;
+    --black: #000000;
+    --very-light-pink: #C7C7C7;
+    --text-input-field: #F7F7F7;
+    --hospital-green: #ACD9B2;
+    --sm: 14px;
+    --md: 16px;
+    --lg: 18px;
+  }
+  body {
+    margin: 0;
+    font-family: 'Quicksand', sans-serif;
+  }
+  .inactive {
+    display: none;
+  }
+  
+  
+  /* Navbar (general) */
+  nav {
+    display: flex;
+    justify-content: space-between;
+    padding: 0 24px;
+    border-bottom: 1px solid var(--very-light-pink);
+  }
+  .menu {
+    display: none;
+  }
+  .logo {
+    width: 100px;
+  }
+  .navbar-left ul,
+  .navbar-right ul {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+    display: flex;
+    align-items: center;
+    height: 60px;
+  }
+  .navbar-left {
+    display: flex;
+  }
+  .navbar-left ul {
+    margin-left: 12px;
+  }
+  .navbar-left ul li a,
+  .navbar-right ul li a {
+    text-decoration: none;
+    color: var(--very-light-pink);
+    border: 1px solid var(--white);
+    padding: 8px;
+    border-radius: 8px;
+  }
+  .navbar-left ul li a:hover,
+  .navbar-right ul li a:hover {
+    border: 1px solid var(--hospital-green);
+    color: var(--hospital-green);
+  }
+  .navbar-email {
+    color: var(--very-light-pink);
+    cursor: pointer;
+    font-size: var(--sm);
+    margin-right: 12px;
+  }
+  .navbar-shopping-cart {
+    position: relative;
+  }
+  .navbar-shopping-cart div {
+    width: 16px;
+    height: 16px;
+    background-color: var(--hospital-green);
+    border-radius: 50%;
+    font-size: var(--sm);
+    font-weight: bold;
+    position: absolute;
+    top: -6px;
+    right: -3px;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+  }
+  
+  /* Menu en desktop */
+  .desktop-menu {
+    position: absolute;
+    top: 60px;
+    right: 60px;
+    background: var(--white);
+    width: 100px;
+    height: auto;
+    border: 1px solid var(--very-light-pink);
+    border-radius: 6px;
+    padding: 20px 20px 0 20px;
+  }
+  .desktop-menu ul {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+  }
+  .desktop-menu ul li {
+    text-align: end;
+  }
+  .desktop-menu ul li:nth-child(1),
+  .desktop-menu ul li:nth-child(2) {
+    font-weight: bold;
+  }
+  .desktop-menu ul li:last-child {
+    padding-top: 20px;
+    border-top: 1px solid var(--very-light-pink);
+  }
+  .desktop-menu ul li:last-child a {
+    color: var(--hospital-green);
+    font-size: var(--sm);
+  }
+  .desktop-menu ul li a {
+    color: var(--back);
+    text-decoration: none;
+    margin-bottom: 20px;
+    display: inline-block;
+  }
+  
+  /* Menu en mobile */
+  .mobile-menu {
+    background-color: var(--white);
+    position: absolute;
+    top: 60px;
+    left: 0;
+    width: 100%;
+    padding: 24px;
+  }
+  .mobile-menu a {
+    text-decoration: none;
+    color: var(--black);
+    font-weight: bold;
+    /* margin-bottom: 24px; */
+  }
+  .mobile-menu ul {
+    padding: 0;
+    margin: 24px 0 0;
+    list-style: none;
+  }
+  .mobile-menu ul:nth-child(1) {
+    border-bottom: 1px solid var(--very-light-pink);
+  }
+  .mobile-menu ul li {
+    margin-bottom: 24px;
+  }
+  .email {
+    font-size: var(--sm);
+    font-weight: 300 !important;
+  }
+  .sign-out {
+    font-size: var(--sm);
+    color: var(--hospital-green) !important;
+  }
+  
+  
+  /* Aside (product detail y carrito) */
+  aside {
+    background-color: var(--white);
+    width: 360px;
+    box-sizing: border-box;
+    position: absolute;
+    right: 0;
+  }
+  
+  /* ShoppingCart */
+  #shoppingCartContainer {
+    padding: 0 24px;
+  }
+  .title-container {
+    display: flex;
+  }
+  .title-container img {
+    transform: rotate(180deg);
+    margin-right: 14px;
+  }
+  .title {
+    font-size: var(--lg);
+    font-weight: bold;
+  }
+  .order {
+    display: grid;
+    grid-template-columns: auto 1fr;
+    gap: 16px;
+    align-items: center;
+    background-color: var(--text-input-field);
+    margin-bottom: 24px;
+    border-radius: 8px;
+    padding: 0 24px;
+  }
+  .order p:nth-child(1) {
+    display: flex;
+    flex-direction: column;
+  }
+  .order p span:nth-child(1) {
+    font-size: var(--md);
+    font-weight: bold;
+  }
+  .order p:nth-child(2) {
+    text-align: end;
+    font-weight: bold;
+  }
+  .shopping-cart {
+    display: grid;
+    grid-template-columns: auto 1fr auto auto;
+    gap: 16px;
+    margin-bottom: 24px;
+    align-items: center;
+  }
+  .shopping-cart figure {
+    margin: 0;
+  }
+  .shopping-cart figure img {
+    width: 70px;
+    height: 70px;
+    border-radius: 20px;
+    object-fit: cover;
+  }
+  .shopping-cart p:nth-child(2) {
+    color: var(--very-light-pink);
+  }
+  .shopping-cart p:nth-child(3) {
+    font-size: var(--md);
+    font-weight: bold;
+  }
+  .primary-button {
+    background-color: var(--hospital-green);
+    border-radius: 8px;
+    border: none;
+    color: var(--white);
+    width: 100%;
+    cursor: pointer;
+    font-size: var(--md);
+    font-weight: bold;
+    height: 50px;
+  }
+  
+  /* ProductDetail */
+  .product-detail-close {
+    background: var(--white);
+    width: 14px;
+    height: 14px;
+    position: absolute;
+    top: 24px;
+    left: 24px;
+    z-index: 2;
+    padding: 12px;
+    border-radius: 50%;
+  }
+  .product-detail-close:hover {
+    cursor: pointer;
+  }
+  #productDetail > img:nth-child(2) {
+    width: 100%;
+    height: 360px;
+    object-fit: cover;
+    border-radius: 0 0 20px 20px;
+  }
+  #productDetail .product-info {
+    margin: 24px 24px 0 24px;
+  }
+  #productDetail .product-info p:nth-child(1) {
+    font-weight: bold;
+    font-size: var(--md);
+    margin-top: 0;
+    margin-bottom: 4px;
+  }
+  #productDetail .product-info p:nth-child(2) {
+    color: var(--very-light-pink);
+    font-size: var(--md);
+    margin-top: 0;
+    margin-bottom: 36px;
+  }
+  #productDetail .product-info p:nth-child(3) {
+    color: var(--very-light-pink);
+    font-size: var(--sm);
+    margin-top: 0;
+    margin-bottom: 36px;
+  }
+  .primary-button {
+    background-color: var(--hospital-green);
+    border-radius: 8px;
+    border: none;
+    color: var(--white);
+    width: 100%;
+    cursor: pointer;
+    font-size: var(--md);
+    font-weight: bold;
+    height: 50px;
+  }
+  .add-to-cart-button {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+  }
+  
+  
+  /* Product List */
+  .cards-container {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, 240px);
+    gap: 26px;
+    place-content: center;
+    margin-top: 20px;
+  }
+  .product-card {
+    width: 240px;
+  }
+  .product-card img {
+    width: 240px;
+    height: 240px;
+    border-radius: 20px;
+    object-fit: cover;
+  }
+  .product-card .product-info {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-top: 12px;
+  }
+  .product-card .product-info figure {
+    margin: 0;
+  }
+  .product-card .product-info figure img {
+    width: 35px;
+    height: 35px;
+  }
+  .product-card .product-info div p:nth-child(1) {
+    font-weight: bold;
+    font-size: var(--md);
+    margin-top: 0;
+    margin-bottom: 4px;
+  }
+  .product-card .product-info div p:nth-child(2) {
+    font-size: var(--sm);
+    margin-top: 0;
+    margin-bottom: 0;
+    color: var(--very-light-pink);
+  }
+  
+  
+  @media (max-width: 640px) {
+    .menu {
+      display: block;
+    }
+    .navbar-left ul {
+      display: none;
+    }
+    .navbar-email {
+      display: none;
+    }
+    .desktop-menu {
+      display: none;
+    }
+  
+    aside {
+      width: 100%;
+    }
+  
+    .cards-container {
+      grid-template-columns: repeat(auto-fill, 140px);
+    }
+    .product-card {
+      width: 140px;
+    }
+    .product-card img {
+      width: 140px;
+      height: 140px;
+    }
+  }
+  
+  @media (min-width: 641px) {
+    .mobile-menu {
+      display: none;
+    }
+  }
+  
\ No newline at end of file
diff --git a/fusion.html b/fusion.html
new file mode 100644
index 000000000..8e91d429a
--- /dev/null
+++ b/fusion.html
@@ -0,0 +1,201 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Quicksand:wght@300;500;700&display=swap" rel="stylesheet">
+
+  <link rel="stylesheet" href="./styles.css">
+
+  <title>YardSale: tienda online de cositas chidas</title>
+</head>
+<body>
+  <nav>
+    <img src="./icons/icon_menu.svg" alt="menu" class="menu">
+
+    <div class="navbar-left">
+      <img src="./logos/logo_yard_sale.svg" alt="logo" class="logo">
+
+      <ul>
+        <li>
+          <a href="/">All</a>
+        </li>
+        <li>
+          <a href="/">Clothes</a>
+        </li>
+        <li>
+          <a href="/">Electronics</a>
+        </li>
+        <li>
+          <a href="/">Furnitures</a>
+        </li>
+        <li>
+          <a href="/">Toys</a>
+        </li>
+        <li>
+          <a href="/">Others</a>
+        </li>
+      </ul>
+    </div>
+
+    <div class="navbar-right">
+      <ul>
+        <li class="navbar-email">platzi@example.com</li>
+        <li class="navbar-shopping-cart">
+          <img src="./icons/icon_shopping_cart.svg" alt="shopping cart">
+          <div>2</div>
+        </li>
+      </ul>
+    </div>
+
+    <div class="desktop-menu inactive">
+      <ul>
+        <li>
+          <a href="/" class="title">My orders</a>
+        </li>
+  
+        <li>
+          <a href="/">My account</a>
+        </li>
+  
+        <li>
+          <a href="/">Sign out</a>
+        </li>
+      </ul>
+    </div>
+
+    <div class="mobile-menu inactive">
+      <ul>
+        <li>
+          <a href="/">CATEGORIES</a>
+        </li>
+        <li>
+          <a href="/">All</a>
+        </li>
+        <li>
+          <a href="/">Clothes</a>
+        </li>
+        <li>
+          <a href="/">Electronics</a>
+        </li>
+        <li>
+          <a href="/">Furnitures</a>
+        </li>
+        <li>
+          <a href="/">Toys</a>
+        </li>
+        <li>
+          <a href="/">Other</a>
+        </li>
+      </ul>
+  
+      <ul>
+        <li>
+          <a href="/">My orders</a>
+        </li>
+        <li>
+          <a href="/">My account</a>
+        </li>
+      </ul>
+  
+      <ul>
+        <li>
+          <a href="/" class="email">platzi@example.com</a>
+        </li>
+        <li>
+          <a href="/" class="sign-out">Sign out</a>
+        </li>
+      </ul>
+    </div>
+  </nav>
+
+  <aside id="shoppingCartContainer" class="inactive">
+    <div class="title-container">
+      <img src="./icons/flechita.svg" alt="arrow">
+      <p class="title">My order</p>
+    </div>
+
+    <div class="my-order-content">
+      <div class="shopping-cart">
+        <figure>
+          <img src="https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="bike">
+        </figure>
+        <p>Bike</p>
+        <p>$30,00</p>
+        <img src="./icons/icon_close.png" alt="close">
+      </div>
+
+      <div class="shopping-cart">
+        <figure>
+          <img src="https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="bike">
+        </figure>
+        <p>Bike</p>
+        <p>$30,00</p>
+        <img src="./icons/icon_close.png" alt="close">
+      </div>
+
+      <div class="shopping-cart">
+        <figure>
+          <img src="https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="bike">
+        </figure>
+        <p>Bike</p>
+        <p>$30,00</p>
+        <img src="./icons/icon_close.png" alt="close">
+      </div>
+
+      <div class="order">
+        <p>
+          <span>Total</span>
+        </p>
+        <p>$560.00</p>
+      </div>
+
+      <button class="primary-button">
+        Checkout
+      </button>
+    </div>
+  </div>
+  </aside>
+
+  <aside id="productDetail" class="inactive">
+    <div class="product-detail-close">
+      <img src="./icons/icon_close.png" alt="close">
+    </div>
+    <img src="https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="bike">
+    <div class="product-info">
+      <p>$35,00</p>
+      <p>Bike</p>
+      <p>With its practical position, this bike also fulfills a decorative function, add your hall or workspace.</p>
+      <button class="primary-button add-to-cart-button">
+        <img src="./icons/bt_add_to_cart.svg" alt="add to cart">
+        Add to cart
+      </button>
+    </div>
+  </aside>
+
+  <section class="main-container">
+    <div class="cards-container">
+
+      <!-- <div class="product-card">
+        <img src="https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="">
+        <div class="product-info">
+          <div>
+            <p>$120,00</p>
+            <p>Bike</p>
+          </div>
+          <figure>
+            <img src="./icons/bt_add_to_cart.svg" alt="">
+          </figure>
+        </div>
+      </div> -->
+
+    </div>
+  </section>
+
+  <script src="./main.js"></script>
+</body>
+</html>
diff --git a/principal.js b/principal.js
new file mode 100644
index 000000000..7ebb1bb3e
--- /dev/null
+++ b/principal.js
@@ -0,0 +1,119 @@
+const menuEmail = document.querySelector('.navbar-email');
+const menuHamIcon = document.querySelector('.menu');
+const menuCarritoIcon = document.querySelector('.navbar-shopping-cart');
+const productDetailCloseIcon = document.querySelector('.product-detail-close')
+const desktopMenu = document.querySelector('.desktop-menu');
+const mobileMenu = document.querySelector('.mobile-menu');
+const shoppingCartContainer = document.querySelector('#shoppingCartContainer');
+const productDetailContainer = document.querySelector('#productDetail');
+const cardsContainer = document.querySelector('.cards-container');
+
+menuEmail.addEventListener('click', toggleDesktopMenu);
+menuHamIcon.addEventListener('click', toggleMobileMenu);
+menuCarritoIcon.addEventListener('click', toggleCarritoAside);
+productDetailCloseIcon.addEventListener('click', closeProductDetailAside);
+
+function toggleDesktopMenu() {
+  const isAsideClosed = shoppingCartContainer.classList.contains('inactive');
+
+  if (!isAsideClosed) {
+    shoppingCartContainer.classList.add('inactive');
+  }
+  
+  desktopMenu.classList.toggle('inactive');
+}
+
+function toggleMobileMenu() {
+  const isAsideClosed = shoppingCartContainer.classList.contains('inactive');
+
+  if (!isAsideClosed) {
+    shoppingCartContainer.classList.add('inactive'); 
+  }
+
+  closeProductDetailAside();
+  
+  mobileMenu.classList.toggle('inactive');
+}
+
+function toggleCarritoAside() {
+  const isMobileMenuClosed = mobileMenu.classList.contains('inactive');
+  
+  if (!isMobileMenuClosed) {
+    mobileMenu.classList.add('inactive');
+  }
+
+  const isProductDetailClosed = productDetailContainer.classList.contains('inactive');
+  
+  if (!isProductDetailClosed) {
+    productDetailContainer.classList.add('inactive'); 
+  }
+  
+  shoppingCartContainer.classList.toggle('inactive');
+}
+
+function openProductDetailAside() {
+  shoppingCartContainer.classList.add('inactive');
+  productDetailContainer.classList.remove('inactive');
+}
+
+function closeProductDetailAside() {
+  productDetailContainer.classList.add('inactive');
+}
+
+const productList = [];
+productList.push({
+  name: 'Bike',
+  price: 120,
+  image: 'https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940',
+});
+productList.push({
+  name: 'Pantalla',
+  price: 220,
+  image: 'https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940',
+});
+productList.push({
+  name: 'Compu',
+  price: 620,
+  image: 'https://images.pexels.com/photos/276517/pexels-photo-276517.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940',
+});
+
+function renderProducts(arr) {
+  for (product of arr) {
+    const productCard = document.createElement('div');
+    productCard.classList.add('product-card');
+  
+    // product= {name, price, image} -> product.image
+    const productImg = document.createElement('img');
+    productImg.setAttribute('src', product.image);
+    productImg.addEventListener('click', openProductDetailAside);
+  
+    const productInfo = document.createElement('div');
+    productInfo.classList.add('product-info');
+  
+    const productInfoDiv = document.createElement('div');
+  
+    const productPrice = document.createElement('p');
+    productPrice.innerText = '$' + product.price;
+    const productName = document.createElement('p');
+    productName.innerText = product.name;
+  
+    productInfoDiv.appendChild(productPrice);
+    productInfoDiv.appendChild(productName);
+  
+    const productInfoFigure = document.createElement('figure');
+    const productImgCart = document.createElement('img');
+    productImgCart.setAttribute('src', './icons/bt_add_to_cart.svg');
+  
+    productInfoFigure.appendChild(productImgCart);
+  
+    productInfo.appendChild(productInfoDiv);
+    productInfo.appendChild(productInfoFigure);
+  
+    productCard.appendChild(productImg);
+    productCard.appendChild(productInfo);
+  
+    cardsContainer.appendChild(productCard);
+  }
+}
+
+renderProducts(productList);