diff --git a/css/t1.css b/css/t1.css
index e69de29..e724641 100644
--- a/css/t1.css
+++ b/css/t1.css
@@ -0,0 +1,38 @@
+/* t1.css - HTML */
+body {
+    font-family: Arial, sans-serif;
+    background-color: white;
+    color: black;
+    margin: 0;
+    padding: 20px;
+}
+
+h1, h2, h3 {
+    font-family: "Times New Roman", serif;
+    text-align: left;
+    color: #333;
+}
+
+button {
+    padding: 5px 10px;
+    border: 1px solid #000;
+    background-color: white;
+    cursor: pointer;
+}
+
+img {
+    width: 100%;
+    height: auto;
+    border: 0;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 1px solid #000;
+}
+
+td, th {
+    padding: 5px;
+    text-align: left;
+}
diff --git a/css/t2.css b/css/t2.css
index e69de29..28bda36 100644
--- a/css/t2.css
+++ b/css/t2.css
@@ -0,0 +1,44 @@
+/* t2.css - HTML+ */
+body {
+    font-family: Verdana, sans-serif;
+    background-color: #f4f4f4;
+    color: #333;
+    margin: 0;
+    padding: 20px;
+}
+
+h1, h2, h3 {
+    font-family: 'Helvetica Neue', sans-serif;
+    text-align: left;
+    color: #444;
+}
+
+button {
+    padding: 8px 15px;
+    border: 1px solid #ddd;
+    background-color: #ddd;
+    cursor: pointer;
+    border-radius: 5px;
+}
+
+button:hover {
+    background-color: #bbb;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 5px;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 1px solid #ddd;
+}
+
+td, th {
+    padding: 8px;
+    text-align: left;
+    border: 1px solid #ddd;
+}
diff --git a/css/t3.css b/css/t3.css
index e69de29..9e75140 100644
--- a/css/t3.css
+++ b/css/t3.css
@@ -0,0 +1,47 @@
+/* t3.css - HTML 2.0 */
+body {
+    font-family: 'Segoe UI', sans-serif;
+    background-color: #f0f0f0;
+    color: #333;
+    margin: 0;
+    padding: 30px;
+}
+
+h1, h2, h3 {
+    font-family: 'Arial', sans-serif;
+    text-align: left;
+    color: #2c3e50;
+}
+
+button {
+    padding: 10px 20px;
+    border: none;
+    background-color: #3498db;
+    color: white;
+    cursor: pointer;
+    border-radius: 10px;
+    font-weight: bold;
+}
+
+button:hover {
+    background-color: #2980b9;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 1px solid #ccc;
+}
+
+td, th {
+    padding: 10px;
+    text-align: left;
+    border: 1px solid #ddd;
+}
diff --git a/css/t4.css b/css/t4.css
index e69de29..3308ae0 100644
--- a/css/t4.css
+++ b/css/t4.css
@@ -0,0 +1,48 @@
+/* t4.css - HTML 3.2 */
+body {
+    font-family: 'Arial', sans-serif;
+    background-color: #ecf0f1;
+    color: #34495e;
+    margin: 0;
+    padding: 40px;
+}
+
+h1, h2, h3 {
+    font-family: 'Georgia', serif;
+    color: #2980b9;
+    margin-bottom: 20px;
+}
+
+button {
+    padding: 12px 25px;
+    border: none;
+    background-color: #1abc9c;
+    color: white;
+    cursor: pointer;
+    border-radius: 12px;
+    font-weight: bold;
+    transition: background-color 0.3s ease;
+}
+
+button:hover {
+    background-color: #16a085;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 15px;
+    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 1px solid #ddd;
+}
+
+td, th {
+    padding: 12px;
+    text-align: left;
+    border: 1px solid #ccc;
+}
diff --git a/css/t5.css b/css/t5.css
index e69de29..bcb6b8e 100644
--- a/css/t5.css
+++ b/css/t5.css
@@ -0,0 +1,49 @@
+/* t5.css - HTML 4.01 */
+body {
+    font-family: 'Helvetica Neue', sans-serif;
+    background-color: #fafafa;
+    color: #2c3e50;
+    margin: 0;
+    padding: 50px;
+}
+
+h1, h2, h3 {
+    color: #e74c3c;
+    text-align: center;
+    margin-bottom: 25px;
+}
+
+button {
+    padding: 15px 30px;
+    border: 2px solid #e74c3c;
+    background-color: #ecf0f1;
+    color: #e74c3c;
+    cursor: pointer;
+    border-radius: 25px;
+    font-size: 16px;
+    transition: background-color 0.3s ease;
+}
+
+button:hover {
+    background-color: #e74c3c;
+    color: white;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 10px;
+    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 1px solid #ecf0f1;
+}
+
+td, th {
+    padding: 15px;
+    text-align: left;
+    border: 1px solid #ecf0f1;
+}
diff --git a/css/t6.css b/css/t6.css
index e69de29..4e85119 100644
--- a/css/t6.css
+++ b/css/t6.css
@@ -0,0 +1,46 @@
+/* t6.css - XHTML 4.01 */
+body {
+    font-family: 'Verdana', sans-serif;
+    background-color: #ffffff;
+    color: #2c3e50;
+    margin: 0;
+    padding: 60px;
+}
+
+h1, h2, h3 {
+    color: #9b59b6;
+    text-align: left;
+    margin-bottom: 30px;
+}
+
+button {
+    padding: 18px 35px;
+    border: none;
+    background-color: #9b59b6;
+    color: white;
+    cursor: pointer;
+    border-radius: 5px;
+    font-size: 18px;
+}
+
+button:hover {
+    background-color: #8e44ad;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 5px;
+    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+}
+
+td, th {
+    padding: 18px;
+    text-align: left;
+    border: 1px solid #ddd;
+}
diff --git a/css/t7.css b/css/t7.css
index e69de29..0c35268 100644
--- a/css/t7.css
+++ b/css/t7.css
@@ -0,0 +1,50 @@
+/* t7.css - XHTML 1.0 */
+body {
+    font-family: 'Georgia', serif;
+    background-color: #ecf0f1;
+    color: #34495e;
+    margin: 0;
+    padding: 70px;
+}
+
+h1, h2, h3 {
+    color: #3498db;
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+button {
+    padding: 20px 40px;
+    border: 2px solid #3498db;
+    background-color: white;
+    color: #3498db;
+    cursor: pointer;
+    border-radius: 25px;
+    font-size: 20px;
+    transition: transform 0.2s ease;
+}
+
+button:hover {
+    transform: scale(1.1);
+    background-color: #3498db;
+    color: white;
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 20px;
+    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 2px solid #3498db;
+}
+
+td, th {
+    padding: 20px;
+    text-align: left;
+    border: 1px solid #3498db;
+}
diff --git a/css/t8.css b/css/t8.css
index e69de29..315497e 100644
--- a/css/t8.css
+++ b/css/t8.css
@@ -0,0 +1,66 @@
+/* t8.css - HTML 5 */
+body {
+    font-family: 'Roboto', sans-serif;
+    background-color: #f5f5f5;
+    color: #333;
+    margin: 0;
+    padding: 80px;
+}
+
+h1, h2, h3 {
+    color: #16a085;
+    text-align: center;
+    margin-bottom: 30px;
+    font-weight: 700;
+}
+
+button {
+    padding: 20px 40px;
+    border: none;
+    background-color: #16a085;
+    color: white;
+    cursor: pointer;
+    border-radius: 50px;
+    font-size: 22px;
+    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
+    transition: background-color 0.3s ease, transform 0.2s ease;
+}
+
+button:hover {
+    background-color: #1abc9c;
+    transform: translateY(-3px);
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 20px;
+    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 2px solid #16a085;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+}
+
+td, th {
+    padding: 25px;
+    text-align: left;
+    border: 1px solid #16a085;
+    font-size: 18px;
+}
+
+td {
+    background-color: #ecf0f1;
+}
+
+th {
+    background-color: #16a085;
+    color: white;
+}
+
+table tr:hover {
+    background-color: #f1f1f1;
+}
diff --git a/css/t9.css b/css/t9.css
index e69de29..7146a17 100644
--- a/css/t9.css
+++ b/css/t9.css
@@ -0,0 +1,81 @@
+/* t9.css - XHTML 5 */
+body {
+    font-family: 'Montserrat', sans-serif;
+    background-color: #ffffff;
+    color: #2c3e50;
+    margin: 0;
+    padding: 90px;
+}
+
+h1, h2, h3 {
+    color: #2980b9;
+    text-align: center;
+    font-weight: 800;
+    text-transform: uppercase;
+    margin-bottom: 35px;
+}
+
+button {
+    padding: 25px 50px;
+    border: none;
+    background-color: #2980b9;
+    color: white;
+    cursor: pointer;
+    border-radius: 40px;
+    font-size: 24px;
+    font-weight: 600;
+    letter-spacing: 1px;
+    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
+}
+
+button:hover {
+    background-color: #3498db;
+    transform: translateY(-5px);
+    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
+}
+
+button:active {
+    transform: translateY(2px);
+    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
+}
+
+img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 25px;
+    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
+    transition: transform 0.3s ease;
+}
+
+img:hover {
+    transform: scale(1.05);
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    border: 3px solid #2980b9;
+    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
+}
+
+td, th {
+    padding: 30px;
+    text-align: left;
+    border: 1px solid #ddd;
+    font-size: 20px;
+    letter-spacing: 1px;
+}
+
+td {
+    background-color: #f9f9f9;
+}
+
+th {
+    background-color: #2980b9;
+    color: white;
+    text-transform: uppercase;
+}
+
+table tr:hover {
+    background-color: #f1f1f1;
+}