diff --git a/solutions/day-03/index.html b/solutions/day-03/index.html
index e1c7bf1..4ca09f0 100644
--- a/solutions/day-03/index.html
+++ b/solutions/day-03/index.html
@@ -13,7 +13,7 @@
     <script src="main.js"></script>
     <script src="level2.js"></script>
 
-</body>
+
 <style>
     button{
         color: white;
@@ -35,4 +35,5 @@
     <button onclick="canDrive()">Are you allowed to drive ?</button><br>
     <button onclick="lifeLength()">How many seconds have you lived ?</button><br>
     <button onclick="calendar()">What's the time?</button><br>
+</body>
 </html>
\ No newline at end of file
diff --git a/solutions/day-04/index.html b/solutions/day-04/index.html
new file mode 100644
index 0000000..4fee60e
--- /dev/null
+++ b/solutions/day-04/index.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <title>30DaysOfJavaScript: Day 04</title>
+</head>
+
+<body style="background-color: black; color: white;">
+    <style>
+        button{
+            color: white;
+            background-color: black;
+            padding: 5px;
+            margin: 5px;
+            border-radius: 6px;
+        }
+    </style>
+    <h1>30DaysOfJavaScript: Day 04</h1>
+    <h2>Conditionals</h2>
+
+    <script src="main.js"></script>
+    <button onclick="canDrive()">Are you old enough to drive ?</button><br>
+    <button onclick="isOlder()">Are you older than me ?</button><br>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/solutions/day-04/main.js b/solutions/day-04/main.js
new file mode 100644
index 0000000..651e0da
--- /dev/null
+++ b/solutions/day-04/main.js
@@ -0,0 +1,40 @@
+function canDrive() {
+    let age = parseInt(prompt("Enter your age."));
+
+    if (age < 18) {
+        alert("You are not old enough to drive");
+    }
+    else {
+        alert("You are old enough to drive!")
+    }
+}
+
+function isOlder() {
+    let myAge = 17;
+    let yourAge = parseInt(prompt("How old are you ?"));
+    
+    if (yourAge > myAge) {
+        alert(`You are ${yourAge - myAge} year(s) older than me.`)
+    }
+    else {
+        alert(`I am ${myAge - yourAge} years older than you!`)
+    }
+}
+
+let a = 4;
+let b = 3;
+
+if (a > b) {
+    console.log(`${a} is greater than ${b}`);
+}
+    else{
+        console.log(`${a} is less than ${b}`);
+    }
+
+switch (true) {
+    case (a > b):
+        console.log(`${a} is greater than ${b}`);
+        break;
+    default:
+        console.log(`${a} is less than ${b}`);
+}
\ No newline at end of file
