diff --git a/README.md b/README.md
index fdf4d72..510aceb 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ Run `node util/reset` to **reset the database**, and run `node util/admin` for g
 Akf-forum has got an API for other clients etc. You can test api with python files in `test` folder. 
 
 Python is only for testing 😭
+
 And, you can learn about API in `util/APIDOCS.md`.
 
 ## Credits
diff --git a/public/css/styles.css b/public/css/styles.css
index 1bc6f08..db993d3 100644
--- a/public/css/styles.css
+++ b/public/css/styles.css
@@ -110,7 +110,7 @@ button, input {
 
 }
 
-button.buyuk {
+button.big {
   width: 150px;
   height: 50px;
 }
@@ -198,7 +198,7 @@ button:hover {
            IMAGES
 *****************************
 */
-img.yuvarlak {
+img.circle {
   border-radius: 50%;
   height: 30px;
   width: 30px;
diff --git a/public/js/thread.js b/public/js/thread.js
index 81198b5..e8eb73c 100644
--- a/public/js/thread.js
+++ b/public/js/thread.js
@@ -44,7 +44,7 @@ document.getElementById("send").addEventListener("submit", async e => {
 <h3 style="float:right;">${new Date(message.time).toLocaleString()}</h3>
 
 <h2>
-<img class="yuvarlak" src=${message.author.avatar} alt=${message.author.name}>
+<img class="circle" src=${message.author.avatar} alt=${message.author.name}>
 <a href="/users/${message.author.id}"> ${message.author.name}</a>:
 </h2>
 
diff --git a/views/admin.ejs b/views/admin.ejs
index be0bdf0..2495828 100644
--- a/views/admin.ejs
+++ b/views/admin.ejs
@@ -13,7 +13,7 @@
                 <h2>Write an ID to give someone admin permissions:</h2>
                 <input name="userid"></input>
                 <hr>
-                <button class="buyuk" type="submit">Give admin permissions!</button>
+                <button class="big" type="submit">Give admin permissions!</button>
             </form>
 
             <script type="module">
diff --git a/views/createThread.ejs b/views/createThread.ejs
index 4cf3dcb..db9204b 100644
--- a/views/createThread.ejs
+++ b/views/createThread.ejs
@@ -18,7 +18,7 @@
                 <textarea rows="4" cols="50" name="content"></textarea>
 
                 <hr>
-                <button class="buyuk" type="submit">Create Thread!</button>
+                <button class="big" type="submit">Create Thread!</button>
             </form>
 
 
diff --git a/views/error.ejs b/views/error.ejs
index 45d9497..5901efc 100644
--- a/views/error.ejs
+++ b/views/error.ejs
@@ -17,9 +17,9 @@
 
    <!-- Navbar: -->
    <a href="/"><img class="logo" src="/images/logo.jpg" alt="AKF-FORUM"></a><br>
-   <button class="buyuk" 
-   onclick="window.location.href = '/'">MAIN PAGE</button>
- 
+
+   <a href="/"> <button class="big">MAIN PAGE</button> </a>
+
    <hr>
 
    <!-- Navbar end -->
diff --git a/views/extra/navbar.ejs b/views/extra/navbar.ejs
index 56f854a..8949b9d 100644
--- a/views/extra/navbar.ejs
+++ b/views/extra/navbar.ejs
@@ -22,7 +22,7 @@
         <div style="float: right;" class="user" id="user">
             <a href=<%=user.getLink() %>>
                 <h1>
-                    <%= user.name %><img class="yuvarlak" src=<%=user.avatar %> alt=<%= user.name %>>
+                    <%= user.name %><img class="circle" src=<%=user.avatar %> alt=<%= user.name %>>
                 </h1>
             </a>
         </div>
diff --git a/views/index.ejs b/views/index.ejs
index 372b9d1..2f1148d 100644
--- a/views/index.ejs
+++ b/views/index.ejs
@@ -8,17 +8,17 @@
     
 <% if (user) { %>
     <h1>Welcome, <a href=<%=user.getLink() %>> <%= user.name %></a>
-        <img class="yuvarlak" src=<%=user.avatar %> alt=<%= user.name %>>
+        <img class="circle" src=<%=user.avatar %> alt=<%= user.name %>>
             <br>
             You can log out of the site here:
-            <button onclick="window.location.href = '/login/'">LOGOUT</button>
-
+            <a href="/login/"><button>LOGOUT</button> </a>
     </h1>
 
     <br>
 <% } else { %>
     <h1>Welcome, Guest!<br>You can press the button to register:
-    <button class="buyuk" onclick= "window.location.href = '/register'">REGISTER</button>
+        <a href="/register/"> <button class="big">REGISTER</button> </a>
+       
     </h1>
  <% } %> 
     <h1>Statistics:</h1>
diff --git a/views/login.ejs b/views/login.ejs
index a3d673f..e0d0864 100644
--- a/views/login.ejs
+++ b/views/login.ejs
@@ -7,7 +7,7 @@
     <!-- Navbar: -->
     <a href="/"><img class="logo" src="/images/logo.jpg" alt="AKF-FORUM"></a>
     <br>
-    <button class="buyuk" onclick="window.location.href = '/register'">REGISTER SECTION</button>
+    <a href="/register/"> <button class="big">REGISTER</button> </a>
     <hr>
 
 
diff --git a/views/register.ejs b/views/register.ejs
index 031beea..a32d424 100644
--- a/views/register.ejs
+++ b/views/register.ejs
@@ -10,7 +10,7 @@
     <a href="/"><img class="logo" src="/images/logo.jpg" alt="AKF-FORUM"></a>
     <br>
 
-    <button class="buyuk" onclick="window.location.href = '/login'">LOGIN PAGE</button>
+    <a href="/login/"> <button class="big">LOGIN</button> </a>
 
     <hr>
 
diff --git a/views/thread.ejs b/views/thread.ejs
index 1815ee9..84a1422 100644
--- a/views/thread.ejs
+++ b/views/thread.ejs
@@ -13,7 +13,7 @@
     </h1>
    
     <h2 style="display:inline;">By <a href=<%="/users/" + thread.author.id %>> <%= thread.author.name %></a>
-      <img class="yuvarlak" src=<%= thread.author.avatar %> alt=<%= thread.author.name %>>
+      <img class="circle" src=<%= thread.author.avatar %> alt=<%= thread.author.name %>>
     </h2>
     
     <% if (user && !thread.deleted){ %>
@@ -36,7 +36,7 @@
         </h3>
 
         <h2>
-          <img class="yuvarlak" src=<%=message.author.avatar %> alt=<%= message.author.name %>>
+          <img class="circle" src=<%=message.author.avatar %> alt=<%= message.author.name %>>
             <a href=<%="/users/" + message.author.id %>> <%= message.author.name %></a>:
         </h2>
 
diff --git a/views/user.ejs b/views/user.ejs
index 5afcc5f..dbfc67c 100644
--- a/views/user.ejs
+++ b/views/user.ejs
@@ -42,11 +42,11 @@
 
       <% if (user?.admin && !member.deleted) {%>
         <form id="admin">
-          <button class="buyuk" type="submit">Give admin permissions!</button>
+          <button class="big" type="submit">Give admin permissions!</button>
         </form>
 
         <form id="delete">
-          <button class="buyuk" type="submit">Delete user!</button>
+          <button class="big" type="submit">Delete user!</button>
         </form>
 
         <script type="module">
diff --git a/views/users.ejs b/views/users.ejs
index d319507..a0515cb 100644
--- a/views/users.ejs
+++ b/views/users.ejs
@@ -13,7 +13,7 @@
                 <% users.forEach(user=>{ %>
                     <li>
                         <h1><a href=<%= user.getLink() %> > <%= user.name %> <%= user.deleted ? "(DELETED)" :""  %></a> 
-                            <img class="yuvarlak" src=<%=user.avatar %> alt=<%= user.name %>>
+                            <img class="circle" src=<%=user.avatar %> alt=<%= user.name %>>
                         </h1>
                     </li>
                 <% }); %>