diff --git a/home_en.html b/home_en.html
index 8f0fabe..e16ad20 100644
--- a/home_en.html
+++ b/home_en.html
@@ -1,148 +1,202 @@
 <!DOCTYPE html>
 
 <html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Home</title>
 
-<head>
-  <meta charset="UTF-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
-  <title>Home</title>
+    <link href="css/header_footer.css" rel="stylesheet" />
+    <link href="css/home.css" rel="stylesheet" />
+    <link
+      href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
+      rel="stylesheet"
+    />
 
-  <link href="css/header_footer.css" rel="stylesheet" />
-  <link href="css/home.css" rel="stylesheet" />
-  <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" rel="stylesheet" />
+    <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js"></script>
+    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js"></script>
+  </head>
 
-  <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js"></script>
-  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
-  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js"></script>
-</head>
-
-<body style=" color: white; background: linear-gradient(126deg, #0A0B14 50%, #171C27 70%, #2E3B4B 100%);background-position: center; background-repeat: no-repeat; background-size: cover; min-height: 100vh; margin: 0; padding: 0;"
-  class="ink-light link-offset-2 link-underline-opacity-25 link-underline-opacity-100-hover">
-  <header>
-    <nav class="navbar navbar-expand-xl navbar-dark bg-header pl-5 pr-5 pt-3 pb-3 border-bottom border-dark">
-      <a class="navbar-brand " href="home_en.html">
-        <img src="img/matico.png" alt="" width="35" height="35" class="d-inline-block align-text-top"> MatViz3D
-      </a>
-      <li class="language-button-mobile nav-item ml-auto mr-3 ">
-        <div class="dropdown">
-          <button class="btn d-flex align-items-center" type="button" id="dropdownMenuButton" data-bs-toggle="dropdown"
-            aria-expanded="false">
-            <img src="img/globe-icon.png" alt="" class="globe-icon">
-          </button>
-          <ul class="dropdown-menu " aria-labelledby="dropdownMenuButton">
-            <li class="dropdown-item">
-              <a class="dropdown-item first enable" href="../home_en.html">EN</a>
+  <body
+    style="
+      color: white;
+      background: linear-gradient(
+        126deg,
+        #0a0b14 50%,
+        #171c27 70%,
+        #2e3b4b 100%
+      );
+      background-position: center;
+      background-repeat: no-repeat;
+      background-size: cover;
+      min-height: 100vh;
+      margin: 0;
+      padding: 0;
+    "
+    class="ink-light link-offset-2 link-underline-opacity-25 link-underline-opacity-100-hover"
+  >
+    <header>
+      <nav
+        class="navbar navbar-expand-xl navbar-dark bg-header pl-5 pr-5 pt-3 pb-3 border-bottom border-dark"
+      >
+        <a class="navbar-brand" href="home_en.html">
+          <img
+            src="img/matico.png"
+            alt=""
+            width="35"
+            height="35"
+            class="d-inline-block align-text-top"
+          />
+          MatViz3D
+        </a>
+        <li class="language-button-mobile nav-item ml-auto mr-3">
+          <div class="dropdown">
+            <button
+              class="btn d-flex align-items-center"
+              type="button"
+              id="dropdownMenuButton"
+              data-bs-toggle="dropdown"
+              aria-expanded="false"
+            >
+              <img src="img/globe-icon.png" alt="" class="globe-icon" />
+            </button>
+            <ul class="dropdown-menu" aria-labelledby="dropdownMenuButton">
+              <li class="dropdown-item">
+                <a class="dropdown-item first enable" href="../home_en.html"
+                  >EN</a
+                >
+              </li>
+              <li class="dropdown-item">
+                <a class="dropdown-item" href="html/home_ua.html">UA</a>
+              </li>
+            </ul>
+          </div>
+        </li>
+        <button
+          class="navbar-toggler"
+          type="button"
+          data-toggle="collapse"
+          data-target="#navbarNav"
+          aria-controls="navbarNav"
+          aria-expanded="false"
+          aria-label="Toggle navigation"
+        >
+          <span class="navbar-toggler-icon"></span>
+        </button>
+        <div class="collapse navbar-collapse" id="navbarNav">
+          <ul class="navbar-nav ml-auto">
+            <li class="nav-item active ml-1 mr-1">
+              <a class="nav-link hovering" href="home_en.html">Home</a>
+            </li>
+            <li class="nav-item ml-1 mr-1">
+              <a class="nav-link hovering" href="html/about_en.html">About</a>
+            </li>
+            <li class="nav-item ml-1 mr-1">
+              <a class="nav-link hovering" href="html/instructions_en.html"
+                >How To Use</a
+              >
+            </li>
+            <li class="nav-item ml-1 mr-1">
+              <a class="nav-link hovering" href="html/downloads_en.html"
+                >Versions & Installation</a
+              >
+            </li>
+            <li class="nav-item ml-1 mr-1">
+              <a class="nav-link hovering" href="html/publications_en.html"
+                >Scientific Publications</a
+              >
             </li>
-            <li class="dropdown-item">
-              <a class="dropdown-item" href="html/home_ua.html">UA</a>
+            <li class="language-button nav-item ml-1 mr-1">
+              <div class="dropdown">
+                <button
+                  class="btn d-flex align-items-center"
+                  type="button"
+                  id="dropdownMenuButton"
+                  data-bs-toggle="dropdown"
+                  aria-expanded="false"
+                >
+                  <img src="img/globe-icon.png" alt="" class="globe-icon" />
+                </button>
+                <ul class="dropdown-menu" aria-labelledby="dropdownMenuButton">
+                  <li class="dropdown-item">
+                    <a class="dropdown-item first enable" href="#">EN</a>
+                  </li>
+                  <li class="dropdown-item">
+                    <a class="dropdown-item" href="html/home_ua.html">UA</a>
+                  </li>
+                </ul>
+              </div>
             </li>
           </ul>
         </div>
-      </li>
-      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav"
-        aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
-        <span class="navbar-toggler-icon"></span>
-      </button>
-      <div class="collapse navbar-collapse" id="navbarNav">
-        <ul class="navbar-nav ml-auto">
-          <li class="nav-item active ml-1 mr-1 ">
-            <a class="nav-link hovering" href="home_en.html">Home</a>
-          </li>
-          <li class="nav-item ml-1 mr-1">
-            <a class="nav-link hovering" href="html/about_en.html">About</a>
-          </li>
-          <li class="nav-item ml-1 mr-1">
-            <a class="nav-link hovering" href="html/instructions_en.html">How To Use</a>
-          </li>
-          <li class="nav-item  ml-1 mr-1">
-            <a class="nav-link hovering" href="html/downloads_en.html">Versions & Installation</a>
-          </li>
-          <li class="nav-item  ml-1 mr-1">
-            <a class="nav-link hovering" href="html/publications_en.html">Scientific Publications</a>
-          </li>
-          <li class="language-button nav-item  ml-1 mr-1">
-            <div class="dropdown">
-              <button class="btn d-flex align-items-center" type="button" id="dropdownMenuButton"
-                data-bs-toggle="dropdown" aria-expanded="false">
-                <img src="img/globe-icon.png" alt="" class="globe-icon">
-              </button>
-              <ul class="dropdown-menu " aria-labelledby="dropdownMenuButton">
-                <li class="dropdown-item">
-                  <a class="dropdown-item first enable" href="#">EN</a>
-                </li>
-                <li class="dropdown-item">
-                  <a class="dropdown-item" href="html/home_ua.html">UA</a>
-                </li>
-              </ul>
-            </div>
-          </li>
-        </ul>
+      </nav>
+    </header>
+    <div class="content">
+      <div class="heading-cont">
+        <h3 class="h3 ml-5 mt-5">
+          Tool for 3D modeling and visualization of microstructures
+        </h3>
+        <br />
       </div>
-    </nav>
-  </header>
-  <div class="content">
-    <div class="heading-cont">
-      <h3 class="h3 ml-5 mt-5">Tool for 3D modeling and visualization of microstructures</h3><br>
-    </div>
-    <div class="cont">
-      <div class="main-left">
-        <br>
-        <div class="text-cont"><p class="ml-5 ">It is a powerful software for creating and visualizing microstructures using cellular automata.
-          The tool allows you to model complex structures of materials, animation of the process of their formation and
-          detailed analysis.</p>
+      <div class="cont">
+        <div class="main-left">
+          <br />
+          <div class="text-cont">
+            <p class="ml-5">
+              It is a powerful software for creating and visualizing
+              microstructures using cellular automata. The tool allows you to
+              model complex structures of materials, animation of the process of
+              their formation and detailed analysis.
+            </p>
+          </div>
+          <div class="main-right-mobile">
+            <div class="cube-pic-cont">
+              <img src="img/cube-pic.png" alt="" class="cube-pic" />
+            </div>
+          </div>
+          <div class="button-cont">
+            <a target="_blank" href="https://github.com/MME-NTU-KhPI/MatViz3D">
+              <button class="download-button ml-5"></button>
+            </a>
+          </div>
         </div>
-        <div class="main-right-mobile">
+        <div class="main-right">
           <div class="cube-pic-cont">
-          <img src="img/cube-pic.png" alt="" class="cube-pic">
-        </div>
+            <img src="img/cube-pic.png" alt="" class="cube-pic" />
+          </div>
         </div>
-        <div class="button-cont">
-          <a target="_blank" href="https://github.com/MME-NTU-KhPI/MatViz3D">
-            <button class="download-button ml-5">
-            </button>
-          </a>
-        </div>
-      </div>
-      <div class="main-right">
-        <div class="cube-pic-cont">
-        <img src="img/cube-pic.png" alt="" class="cube-pic">
-      </div>
       </div>
     </div>
-  </div>
-  <footer class="border-top border-dark">
-    <div class="left-footer-cont">
-      <div class="footer-content ml-5">
-        <a href="https://github.com/MME-NTU-KhPI/MatViz3D" target="_blank">
-          MatViz3D
-        </a>
-        <p>
-          Department of Mathematical Modeling and Intelligent Computing in Engineering (MMI), NTU "KhPI", st. 2
-          Kyrpychova
-          Ave., c. Kharkiv, Ukraine, 61002
-        </p>
-        <p>
-          post.matviz3d@gmail.com
-        </p>
-        </a>
+    <footer class="border-top border-dark">
+      <div class="left-footer-cont">
+        <div class="footer-content ml-5">
+          <a href="https://github.com/MME-NTU-KhPI/MatViz3D" target="_blank">
+            MatViz3D
+          </a>
+          <p>
+            Department of Mathematical Modeling and Intelligent Computing in
+            Engineering (MMI), NTU "KhPI", st. 2 Kyrpychova Ave., c. Kharkiv,
+            Ukraine, 61002
+          </p>
+          <p>post.matviz3d@gmail.com</p>
+        </div>
       </div>
-    </div>
-    <div class="right-footer-cont">
-      <div class="footer-links mr-5">
-        <a href="https://web.kpi.kharkov.ua/dpm/uk/istoriya-kafedri/">
-          About the Department
-        </a>
-        <a href="#">
-          Team
-        </a>
-        <a href="https://web.kpi.kharkov.ua/dpm/uk/kontaktna-informatsiya-kafedri/">
-          Contact
-        </a>
+      <div class="right-footer-cont">
+        <div class="footer-links mr-5">
+          <a href="https://web.kpi.kharkov.ua/dpm/uk/istoriya-kafedri/">
+            About the Department
+          </a>
+          <a href="#"> Team </a>
+          <a
+            href="https://web.kpi.kharkov.ua/dpm/uk/kontaktna-informatsiya-kafedri/"
+          >
+            Contact
+          </a>
+        </div>
       </div>
-    </div>
-  </footer>
-</body>
-
-</html>
\ No newline at end of file
+    </footer>
+  </body>
+</html>
