diff --git a/src/index.html b/src/index.html
index e7c4417..0695601 100644
--- a/src/index.html
+++ b/src/index.html
@@ -8,16 +8,13 @@
   </head>
   <body>
     <form>
-      <!-- TODO: Fix Logo Rendering Issue-->
-      <img src="/logo.png" />
+      <img src="logo.svg" />
       <span id="success-message" hidden="true">Success!</span>
       <span id="error-message" hidden="true">Invalid Credentials</span>
       <label for="email">Email</label>
-      <!-- TODO: Add HTML Email Validation to Email Input -->
-      <input id="email" type="text" placeholder="Enter your email" />
+      <input id="email" type="email" placeholder="Enter your email"/>
       <label for="password">Password</label>
-      <!-- TODO: Update HTML Password Input to Hide Password Visibility -->
-      <input id="password" type="text" placeholder="Enter your password" />
+      <input id="password" type="password" placeholder="Enter your password" />
       <button>Submit</button>
     </form>
   </body>
diff --git a/src/script.js b/src/script.js
index 4e3be16..bb25077 100644
--- a/src/script.js
+++ b/src/script.js
@@ -24,10 +24,11 @@ addEventListener("submit", (event) => {
 
   console.log(`email submitted: ${email}`);
   console.log(`password submitted: ${password}`);
-  /*
-    TODO:
-    1. Check if the email and password are valid (using the usersTable)
-    2. If they are, call renderSuccess()
-    3. If they are not, call renderError()
-   */
+  
+  const doesUserExist = usersTable.find(user => user.username === email && user.password === password);
+  if(doesUserExist) {
+    renderSuccess();
+  } else {
+    renderError();
+  }
 });
diff --git a/src/styles.css b/src/styles.css
index 25969e5..8755779 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1,7 +1,6 @@
 body {
   height: 100vh;
   display: flex;
-  /* TODO: Adjust CSS so that form is centered on page */
   align-items: center;
 }
 
@@ -11,6 +10,7 @@ form {
   border: 1px solid black;
   padding: 2rem;
   border-radius: 2rem;
+  margin: 0 auto;
 }
 
 form > img {
