diff --git a/Dockerfile b/Dockerfile
index 237aba9d7d54c4573c85b8bc59dcf5a6031747d7..8dae610fba73c11f5c37158b0f0fac4d6c6170dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,8 +18,10 @@ RUN apt-get install -y graphviz
 # copy every content from the local file to the image
 COPY . .
 
+WORKDIR /app/Frontend
+
 # configure the container to run in an executed manner
 ENTRYPOINT [ "python" ]
 # RUN chmod 644 Frontend/main.py
-CMD ["Frontend/main.py" ]
+CMD ["main.py" ]
 
diff --git a/Frontend/static/net.png b/Frontend/static/net.png
index 8366921b9e46cb86a778eb9ecff958710ab7c90c..5e496d527dad115255c9a79be871b04582723c21 100644
Binary files a/Frontend/static/net.png and b/Frontend/static/net.png differ
diff --git a/Frontend/static/preview_net.png b/Frontend/static/preview_net.png
index 4c886acac6b1cfadf4e6e9d25f3c87563fe7bf38..9cd458c38aa97891aa12f1a8f7383129aa8b964d 100644
Binary files a/Frontend/static/preview_net.png and b/Frontend/static/preview_net.png differ
diff --git a/Frontend/static/process_net.png b/Frontend/static/process_net.png
index cb472bd29eba5a493233367c319c6d4548043cf8..39c56cfa0481e6f81fd9bd7bfe5386712bad09db 100644
Binary files a/Frontend/static/process_net.png and b/Frontend/static/process_net.png differ
diff --git a/Frontend/static/styles.css b/Frontend/static/styles.css
index e7360356f9141ec0ea93cb98a71f1396c4e1da89..ab22263e10fda004f1eed88833185dd667cbc62b 100644
--- a/Frontend/static/styles.css
+++ b/Frontend/static/styles.css
@@ -45,10 +45,18 @@ th, td {
   margin:0px;
 }
 
+.contents{
+  margin-top: 5%;
+}
+
 /* Add a black background color to the top navigation */
 .topnav {
   background-color:rgb(0,114,188);
   overflow: hidden;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
 }
 
 /* Style the links inside the navigation bar */
diff --git a/Frontend/static/user_manual.pdf b/Frontend/static/user_manual.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..ae3b2fbac4eb6f759329487057ddb53763b1c77f
Binary files /dev/null and b/Frontend/static/user_manual.pdf differ
diff --git a/Frontend/templates/aboutus.html b/Frontend/templates/aboutus.html
index aa332ae318996c77115be22812d4137dd43089ac..30628e3ccf46f91aa984479aed0c86af02e460bc 100644
--- a/Frontend/templates/aboutus.html
+++ b/Frontend/templates/aboutus.html
@@ -5,7 +5,7 @@
 {% endblock %}
 
 {% block body %}
-<div style='text-align:center'>
+<div class="contents" style='text-align:center'>
     <h1>This is a project from the Chair of Process and Data Science from RWTH Aachen University</h1>
     <img src="{{url_for('static',filename='moyai.jpg')}}" alt="Placeholder"> <br>
     <h2>by: Ahmad Mannoun,  Aleksandra Dimitrova, Geno Jayadi, Paula Hermenau  </h2>
diff --git a/Frontend/templates/case.html b/Frontend/templates/case.html
index ca55b4d8ffb81dbdd6fc263bc3ba85df09b62c3c..430e221722eee14244730297c3ba31b393471e07 100644
--- a/Frontend/templates/case.html
+++ b/Frontend/templates/case.html
@@ -8,7 +8,7 @@
 {% endblock %}
 
 {% block body %}
-<div style="text-align: center; margin-top: 10px;" class="custom-select" >
+<div class="contents" style="text-align: center;" class="custom-select" >
 
   Choose which case you want to optimize:
   <!-- This is the form for directly sending case ID to be processed by the agent. -->
diff --git a/Frontend/templates/index.html b/Frontend/templates/index.html
index a2ef9ca4ef235db9964059a71017fa491e0f0689..5b456ac29347b138856d1ffdb15205c4148ecb19 100644
--- a/Frontend/templates/index.html
+++ b/Frontend/templates/index.html
@@ -6,24 +6,26 @@
 {% endblock %}
 
 {% block body %}
-  <header style="text-align: center;">
-    <img src="/static/OPTIS_logo3.png" alt="Placeholder" style="max-width: 50%; padding: 40px; margin-top: 40px;">
-  </header>
+  <div class="contents">
+    <header style="text-align: center;">
+      <img src="/static/OPTIS_logo3.png" alt="Placeholder" style="max-width: 50%; padding: 40px; margin-top: 40px;">
+    </header>
 
-  <div style="text-align: center; padding-top: 40 px;">
-    <h1 class="introductions" style="color: rgb(0,114,188);">Introduction</h1>
-      <text class="desc">OPTIS is a standalone Python based web application which aims to minimize time requirements of busines processes. <br> It seeks to achieve this by using an intelligent agent that is trained using reinforcement learning techniques. <br> Learn more about the app <a href="info.html">here</a>! <br></text>
-  </div>
-
-  <div style="text-align: center; padding-top: 40 px; margin-top: 20px;">
-    <text class="desc">Make sure to read the <a href="{{ url_for('static', filename='User_Manual.pdf') }}">user manual</a> and have fun optimizing your process!</text>
-  </div>
+    <div style="text-align: center; padding-top: 40 px;">
+      <h1 class="introductions" style="color: rgb(0,114,188);">Introduction</h1>
+        <text class="desc">OPTIS is a standalone Python based web application which aims to minimize time requirements of busines processes. <br> It seeks to achieve this by using an intelligent agent that is trained using reinforcement learning techniques. <br> Learn more about the app <a href="info.html">here</a>! <br></text>
+    </div>
 
-  <form  id="gotoStart" method="post" name="gotoStart">
-    <div style = "text-align: center;">
-      <!--Submit button-->
-      <button type="submit" class="button" form="gotoStart"  style="margin-top: 50px;"> Optimize now!</button>
+    <div style="text-align: center; padding-top: 40 px; margin-top: 20px;">
+      <text class="desc">Make sure to read the <a href="{{ url_for('static', filename='user_manual.pdf') }}">user manual</a> and have fun optimizing your process!</text>
     </div>
-  </form>
+
+    <form  id="gotoStart" method="post" name="gotoStart">
+      <div style = "text-align: center;">
+        <!--Submit button-->
+        <button type="submit" class="button" form="gotoStart"  style="margin-top: 50px;"> Optimize now!</button>
+      </div>
+    </form>
+  </div>
 
 {% endblock %}
\ No newline at end of file
diff --git a/Frontend/templates/info.html b/Frontend/templates/info.html
index 16de4cc0ed56dea606925c69bd1847983afec3e4..47fa9dec67d5587b8a9d8424220eb1a9f1f7baf9 100644
--- a/Frontend/templates/info.html
+++ b/Frontend/templates/info.html
@@ -5,7 +5,7 @@
 {% endblock %}
 
 {% block body %}
-  <div style="text-align: center; padding-top: 40 px;">
+  <div class="contents" style="text-align: center; padding-top: 40 px;">
     <h1 class="introductions" style="color: rgb(0,114,188);">What does OPTIS do?</h1>
       <text class="desc">OPTIS is a standalone Python based web application which aims to minimize time requirements of busines processes. <br> 
         It's customized to work on a single business process:
diff --git a/Frontend/templates/preview.html b/Frontend/templates/preview.html
index 4527cc172fe0b07cb0e5e61a8b42dc0065247fa8..c4b1993f0bb0ed0a3a863ef80358170a681cde28 100644
--- a/Frontend/templates/preview.html
+++ b/Frontend/templates/preview.html
@@ -5,7 +5,7 @@
 {%endblock%}
 
 {%block body%}
-<div style="text-align: center;">
+<div class="contents" style="text-align: center;">
     <h1>File Preview: {{ filename }}</h1>
     <p>Preview the first {{ row_count }} rows of your uploaded event log to make sure you've uploaded the right file.</p>
     <table>
diff --git a/Frontend/templates/result.html b/Frontend/templates/result.html
index 729f646bb9f49f35a0d868e6c1d9a78e66680ba3..7c19f75022ccf79829b7e328a8a570954dfd1a66 100644
--- a/Frontend/templates/result.html
+++ b/Frontend/templates/result.html
@@ -9,7 +9,7 @@
 {%endblock%}
 
 {%block body%}
-<div style="text-align: center;">
+<div class="contents" style="text-align: center;">
     <h1>Here are the results of the optimization!</h1>
         <h2>We recommend you to do the following activity for this specific case: {{name}}</h2>
             <!--res is the result-->
diff --git a/Frontend/templates/start.html b/Frontend/templates/start.html
index 9856d5767b1376907c735b5758f060cfba65b8b9..a768327a57838bd093694d2172c494d818d9f9da 100644
--- a/Frontend/templates/start.html
+++ b/Frontend/templates/start.html
@@ -6,7 +6,7 @@
 {% endblock %}
 
 {% block body %}
-  <div style="text-align: center;">
+  <div class = "contents" style="text-align: center;">
     <h1>Upload your files and get started now!</h1>
     <!--This is the upload functionality. It automatically already filters for xes and csv file. However, a warning is added nonetheless for user experience.-->
       <form action="{{ url_for('upload_file') }}" method="POST" enctype="multipart/form-data" name="upload">
diff --git a/backend/__pycache__/businessprocess.cpython-311.pyc b/backend/__pycache__/businessprocess.cpython-311.pyc
index b6f04a576873684deaf809179ad802bd4d2d87ef..a580e36c64da5d35fad56190cb79a6f49875e631 100644
Binary files a/backend/__pycache__/businessprocess.cpython-311.pyc and b/backend/__pycache__/businessprocess.cpython-311.pyc differ
diff --git a/backend/__pycache__/case.cpython-311.pyc b/backend/__pycache__/case.cpython-311.pyc
index 3b2628846fceeaa96fc6ca86cddbe07f2980b3fe..99c33626418ce6d23efb7d20076581d25a471ce4 100644
Binary files a/backend/__pycache__/case.cpython-311.pyc and b/backend/__pycache__/case.cpython-311.pyc differ
diff --git a/backend/__pycache__/dqn.cpython-311.pyc b/backend/__pycache__/dqn.cpython-311.pyc
index 076b9498a5fe6028b2cc6bfe9d18fcf383ed9d97..09e5cf216cd4ff0d14f675ac554d994d78fb7ea3 100644
Binary files a/backend/__pycache__/dqn.cpython-311.pyc and b/backend/__pycache__/dqn.cpython-311.pyc differ
diff --git a/backend/__pycache__/environment.cpython-311.pyc b/backend/__pycache__/environment.cpython-311.pyc
index bf8bdd6f8abf57d44d7d31e285c1f817d1686836..60619c9ae81a91e3a545648b79c523c08e8db24e 100644
Binary files a/backend/__pycache__/environment.cpython-311.pyc and b/backend/__pycache__/environment.cpython-311.pyc differ
diff --git a/backend/__pycache__/eventlog.cpython-311.pyc b/backend/__pycache__/eventlog.cpython-311.pyc
index c8a819fc6da9b70e6008a966e287198171f68b99..b667180f002b3a5262a9a5545c0823391b79e7d3 100644
Binary files a/backend/__pycache__/eventlog.cpython-311.pyc and b/backend/__pycache__/eventlog.cpython-311.pyc differ
diff --git a/backend/__pycache__/petrinet.cpython-311.pyc b/backend/__pycache__/petrinet.cpython-311.pyc
index e3b4b2a8c31c9e0f375b05a90218b1ed84db86bb..8095564d92d01a40d4ca9a9d7a9c303f31665759 100644
Binary files a/backend/__pycache__/petrinet.cpython-311.pyc and b/backend/__pycache__/petrinet.cpython-311.pyc differ
diff --git a/backend/__pycache__/simplesimmodel.cpython-311.pyc b/backend/__pycache__/simplesimmodel.cpython-311.pyc
index ebc60eb64288c41e6615808803a79c5a522b4589..5b18da0fb020e1d8dec13987efb9a4c922123706 100644
Binary files a/backend/__pycache__/simplesimmodel.cpython-311.pyc and b/backend/__pycache__/simplesimmodel.cpython-311.pyc differ
diff --git a/backend/dqn.py b/backend/dqn.py
index ab2d9ea46280818862bc2e1dc606ec94364103e3..06efd7bc349c51c98d92a6ae4590dcfe09aa1701 100644
--- a/backend/dqn.py
+++ b/backend/dqn.py
@@ -68,7 +68,7 @@ def deploy(state):
         number of the encoded optimal action to take
     
     """
-    model = DQN.load(r'..\models\1687176631\2000000')
+    model = DQN.load(r'../models/1687176631/2000000')
     action, _ = model.predict(state, deterministic=True)
 
     return action
diff --git a/backend/petrinet.py b/backend/petrinet.py
index dab423110cef14b32921511c608004514dc0a7ab..3af772cda6f66b69425cc5032749d6ca2b326c0a 100644
--- a/backend/petrinet.py
+++ b/backend/petrinet.py
@@ -30,7 +30,7 @@ def generate_petri_net():
 
     # we use an existing event log to create a petri net for our process
     # dataframe = pd.read_csv(r'Frontend/static/eventlog.csv', sep=',') #docker
-    dataframe = pd.read_csv(r'static\eventlog.csv', sep=',') #local
+    dataframe = pd.read_csv(r'static/eventlog.csv', sep=',') #local
     dataframe['StartTimestamp'] = pd.to_datetime(dataframe['StartTimestamp'])
     
     # Sort the event log by case ID and start timestamp, and get only finished cases
@@ -60,7 +60,7 @@ def process_petri_net():
     for t in net.transitions:
         decoration.update({t: {}})
         decoration[t].update({"color":"white"})
-    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static\process_net.png") #local
+    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static/process_net.png") #local
 
 def decorate_petri_net(case, name):
     """Exports a .png of a petri-net with the trace of the case colored.
@@ -105,7 +105,7 @@ def decorate_petri_net(case, name):
     # pm4py.view_petri_net(net, initial_marking, final_marking, decorations = decoration)
     print("made petrinet")
     # pm4py.save_vis_petri_net(net, initial_marking, final_marking, decorations = decoration, file_path = r"Frontend/static/preview_net.png") #docker
-    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static\preview_net.png") #local
+    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static/preview_net.png") #local
 
 def decorate_petri_net_with_rec(case, rec, name):
     """Exports a .png of a petri-net in which the trace of the case is colored in one color and the recommended activity in another.
@@ -153,7 +153,7 @@ def decorate_petri_net_with_rec(case, rec, name):
 
     # pm4py.view_petri_net(net, initial_marking, final_marking, decorations = decoration)
     # pm4py.save_vis_petri_net(net, initial_marking, final_marking, decorations = decoration, file_path = r"Frontend/static/net.png") #docker
-    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static\net.png") #local
+    pm4py.save_vis_petri_net(net, initial_marking, final_marking, bgcolor = "#E6F1FA", decorations = decoration, file_path = r"static/net.png") #local
     return rec_name
 
 # decorate_petri_net(646, 7, "eventlog.csv")