diff --git a/client/app/src/main/java/helper/SvgBtnCreator.java b/client/app/src/main/java/helper/SvgBtnCreator.java
index a978be3..b23e366 100644
--- a/client/app/src/main/java/helper/SvgBtnCreator.java
+++ b/client/app/src/main/java/helper/SvgBtnCreator.java
@@ -12,7 +12,7 @@ public class SvgBtnCreator {
         Button btn = new Button();
 
         Bounds boundsDel = group.getBoundsInParent();
-        double scaleDel = Math.min(20 / boundsDel.getWidth(), 20 / boundsDel.getHeight());
+        double scaleDel = Math.min(svgSize / boundsDel.getWidth(), svgSize / boundsDel.getHeight());
         group.setScaleX(scaleDel);
         group.setScaleY(scaleDel);
         btn.setGraphic(group);
diff --git a/client/app/src/main/java/main/MainController.java b/client/app/src/main/java/main/MainController.java
index 4968a18..937d4c2 100644
--- a/client/app/src/main/java/main/MainController.java
+++ b/client/app/src/main/java/main/MainController.java
@@ -27,6 +27,8 @@ import java.util.Objects;
 
 public class MainController {
 
+    @FXML
+    public VBox leftNav;
     @FXML
     private GridPane calendarGrid;
 
@@ -49,8 +51,39 @@ public class MainController {
     public void initialize() {
         createWeek();
         setDates();
-
         updateEvents();
+
+        leftNav.setSpacing(40);
+
+        Group svgAdd = new Group(
+                SvgBtnCreator.createPath("M0 0h24v24H0z", "transparent", "transparent"),
+                SvgBtnCreator.createPath("M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z",
+                        "white", "lightgray")
+        );
+        Button addBtn = SvgBtnCreator.cretaeBtn(svgAdd, 40);
+        addBtn.setOnAction(e -> onAddBtnClick());
+        addBtn.getStyleClass().add("main-btn");
+        leftNav.getChildren().add(addBtn);
+
+        Group svgSettings = new Group(
+                SvgBtnCreator.createPath("M0,0h24v24H0V0z", "transparent", "transparent"),
+                SvgBtnCreator.createPath("M19.14,12.94c0.04-0.3,0.06-0.61,0.06-0.94c0-0.32-0.02-0.64-0.07-0.94l2.03-1.58c0.18-0.14,0.23-0.41,0.12-0.61 l-1.92-3.32c-0.12-0.22-0.37-0.29-0.59-0.22l-2.39,0.96c-0.5-0.38-1.03-0.7-1.62-0.94L14.4,2.81c-0.04-0.24-0.24-0.41-0.48-0.41 h-3.84c-0.24,0-0.43,0.17-0.47,0.41L9.25,5.35C8.66,5.59,8.12,5.92,7.63,6.29L5.24,5.33c-0.22-0.08-0.47,0-0.59,0.22L2.74,8.87 C2.62,9.08,2.66,9.34,2.86,9.48l2.03,1.58C4.84,11.36,4.8,11.69,4.8,12s0.02,0.64,0.07,0.94l-2.03,1.58 c-0.18,0.14-0.23,0.41-0.12,0.61l1.92,3.32c0.12,0.22,0.37,0.29,0.59,0.22l2.39-0.96c0.5,0.38,1.03,0.7,1.62,0.94l0.36,2.54 c0.05,0.24,0.24,0.41,0.48,0.41h3.84c0.24,0,0.44-0.17,0.47-0.41l0.36-2.54c0.59-0.24,1.13-0.56,1.62-0.94l2.39,0.96 c0.22,0.08,0.47,0,0.59-0.22l1.92-3.32c0.12-0.22,0.07-0.47-0.12-0.61L19.14,12.94z M12,15.6c-1.98,0-3.6-1.62-3.6-3.6 s1.62-3.6,3.6-3.6s3.6,1.62,3.6,3.6S13.98,15.6,12,15.6z",
+                        "white", "lightgray")
+        );
+        Button settingsBtn = SvgBtnCreator.cretaeBtn(svgSettings, 40);
+        settingsBtn.setOnAction(e -> onSettingBtnClick());
+        settingsBtn.getStyleClass().add("main-btn");
+        leftNav.getChildren().add(settingsBtn);
+
+        Group svgLogout = new Group(
+                SvgBtnCreator.createPath("M0 0h24v24H0z", "transparent", "transparent"),
+                SvgBtnCreator.createPath("M17 7l-1.41 1.41L18.17 11H8v2h10.17l-2.58 2.58L17 17l5-5zM4 5h8V3H4c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h8v-2H4V5z",
+                        "white", "lightgray")
+        );
+        Button logoutBtn = SvgBtnCreator.cretaeBtn(svgLogout, 40);
+        logoutBtn.setOnAction(e -> onLogoutBtnClick());
+        logoutBtn.getStyleClass().add("main-btn");
+        leftNav.getChildren().add(logoutBtn);
     }
 
     private void updateEvents() {
@@ -108,6 +141,14 @@ public class MainController {
         updateEvents();
     }
 
+    protected void onSettingBtnClick(){
+
+    }
+
+    protected void onLogoutBtnClick(){
+
+    }
+
     private void createWeek() {
         for (int i = 0; i < 7; i++) {
             Label label = new Label();
diff --git a/client/app/src/main/resources/main/main-view.css b/client/app/src/main/resources/main/main-view.css
index 0821874..657cac8 100644
--- a/client/app/src/main/resources/main/main-view.css
+++ b/client/app/src/main/resources/main/main-view.css
@@ -63,13 +63,16 @@ Label{
 }
 
 .main-btn{
-    -fx-background-color: #ffffff;
-    -fx-text-fill: -fx-main-text-color;
-    -fx-background-radius: 5em;
-    -fx-min-width: 40px;
-    -fx-min-height: 40px;
-    -fx-max-width: 40px;
-    -fx-max-height: 40px;
+    -fx-background-color: transparent;
+    -fx-border-color: transparent;
+}
+
+.main-btn .svg {
+    -fx-fill: -fill;
+}
+
+.main-btn:hover .svg {
+    -fx-fill: -hover-fill;
 }
 
 .navBtn{
diff --git a/client/app/src/main/resources/main/main-view.fxml b/client/app/src/main/resources/main/main-view.fxml
index 758226a..825fb73 100644
--- a/client/app/src/main/resources/main/main-view.fxml
+++ b/client/app/src/main/resources/main/main-view.fxml
@@ -15,20 +15,11 @@
     <rowConstraints>
         <RowConstraints vgrow="SOMETIMES"/>
     </rowConstraints>
-    <VBox alignment="TOP_CENTER" prefHeight="200.0" prefWidth="100.0" spacing="5.0"
+    <VBox fx:id="leftNav" alignment="TOP_CENTER" prefHeight="200.0" prefWidth="100.0" spacing="5.0"
           style="-fx-background-color: #525E74;">
         <ImageView fitHeight="50.0" fitWidth="50.0" pickOnBounds="true" preserveRatio="true">
 
         </ImageView>
-        <JFXButton onAction="#onAddBtnClick" styleClass="main-btn">
-            ADD
-        </JFXButton>
-        <JFXButton onAction="#onAddBtnClick" styleClass="main-btn">
-            ADD
-        </JFXButton>
-        <JFXButton onAction="#onAddBtnClick" styleClass="main-btn">
-            ADD
-        </JFXButton>
     </VBox>
     <GridPane prefHeight="200.0" prefWidth="222.0" GridPane.columnIndex="1" GridPane.rowIndex="0">
         <columnConstraints>