diff --git a/src/components/Links/LinkTargetBlank/LinkTargetBlank.tsx b/src/components/Links/LinkTargetBlank/LinkTargetBlank.tsx
index 6286d747d0..6548ac8dcc 100644
--- a/src/components/Links/LinkTargetBlank/LinkTargetBlank.tsx
+++ b/src/components/Links/LinkTargetBlank/LinkTargetBlank.tsx
@@ -1,6 +1,7 @@
 import * as React from 'react'
 import { Link } from 'rebass'
 import ImageTargetBlank from 'src/assets/icons/link-target-blank.svg'
+import { zIndex } from 'src/themes/styled.theme'
 
 export const LinkTargetBlank = props => (
   <Link
@@ -14,7 +15,7 @@ export const LinkTargetBlank = props => (
         backgroundImage: `url("${ImageTargetBlank}")`,
         width: '20px',
         height: '20px',
-        zIndex: 0,
+        zIndex: `${zIndex.level}`,
         backgroundSize: 'contain',
         backgroundRepeat: 'no-repeat',
         position: 'absolute',
diff --git a/src/components/Modal/Modal.tsx b/src/components/Modal/Modal.tsx
index 1183c2712a..ad28c856bd 100644
--- a/src/components/Modal/Modal.tsx
+++ b/src/components/Modal/Modal.tsx
@@ -2,6 +2,7 @@ import * as React from 'react'
 import { Portal } from 'react-portal'
 import { Box } from 'rebass'
 import styled from 'styled-components'
+import { zIndex } from 'src/themes/styled.theme'
 
 interface IProps {
   // provide onDidDismiss function to enable backdrop click dismiss
@@ -18,7 +19,7 @@ const ModalBackdrop = styled(Box)`
   left: 0;
   width: 100%;
   height: 100%;
-  z-index: 9;
+  z-index: ${zIndex.modalBackdrop};
   background: rgba(0, 0, 0, 0.4);
 `
 const ModalContent = styled(Box)`
@@ -31,7 +32,7 @@ const ModalContent = styled(Box)`
   max-width: 100%;
   max-height: 100%;
   position: fixed;
-  z-index: 10;
+  z-index: ${zIndex.modalContent};
   left: 50%;
   top: 50%;
   transform: translate(-50%, -50%);
diff --git a/src/components/MoreContainer/MoreContainer.tsx b/src/components/MoreContainer/MoreContainer.tsx
index 0ad8345ce0..a56f4e6cb0 100644
--- a/src/components/MoreContainer/MoreContainer.tsx
+++ b/src/components/MoreContainer/MoreContainer.tsx
@@ -7,6 +7,7 @@ import WhiteBubble1 from 'src/assets/images/white-bubble_1.svg'
 import WhiteBubble2 from 'src/assets/images/white-bubble_2.svg'
 import WhiteBubble3 from 'src/assets/images/white-bubble_3.svg'
 import { BoxProps } from 'rebass'
+import { zIndex } from 'src/themes/styled.theme'
 
 const MoreModalContainer = styled(Box)`
   position: relative;
@@ -16,7 +17,7 @@ const MoreModalContainer = styled(Box)`
     background-image: url(${WhiteBubble0});
     width: 100%;
     height: 100%;
-    z-index: -1;
+    z-index: ${zIndex.behind};
     background-size: contain;
     background-repeat: no-repeat;
     position: absolute;
diff --git a/src/components/ProfileModal/ProfileModal.tsx b/src/components/ProfileModal/ProfileModal.tsx
index dc6ffa82ad..0b2401fd33 100644
--- a/src/components/ProfileModal/ProfileModal.tsx
+++ b/src/components/ProfileModal/ProfileModal.tsx
@@ -6,7 +6,7 @@ import { inject, observer } from 'mobx-react'
 import { COMMUNITY_PAGES_PROFILE } from 'src/pages/PageList'
 import { NavLink } from 'react-router-dom'
 import Flex from 'src/components/Flex'
-import theme from 'src/themes/styled.theme'
+import theme, { zIndex } from 'src/themes/styled.theme'
 
 interface IProps {
   username: string
@@ -24,11 +24,11 @@ const ModalContainer = styled(Box)`
   position: absolute;
   right: 10px;
   top: 60px;
-  z-index: 900;
+  z-index: ${zIndex.modalProfile};
   height: 100%;
 `
-const ModalContent = styled(Box)`
-  z-index: 900;
+const ModalContainerInner = styled(Box)`
+  z-index: ${zIndex.modalProfile};
   position: relative;
   background: white;
   border: 2px solid black;
@@ -38,7 +38,7 @@ const ModalContent = styled(Box)`
 const ModalLink = styled(NavLink).attrs(({ name }) => ({
   activeClassName: 'current',
 }))`
-  z-index: 900;
+  z-index: ${zIndex.modalProfile};
   display: flex;
   flex-direction: column;
   color: #000;
@@ -80,7 +80,7 @@ export class ProfileModal extends React.Component<IProps> {
     const { username } = this.props
     return (
       <ModalContainer data-cy="user-menu-list">
-        <ModalContent>
+        <ModalContainerInner>
           <Flex>
             <ModalLink to={'/u/' + username} data-cy="menu-item">
               <Flex>Profile</Flex>
@@ -94,11 +94,15 @@ export class ProfileModal extends React.Component<IProps> {
             ))}
           </Flex>
           <Flex>
-            <ModalLink onClick={() => this.logout()} to={'/how-to'} data-cy="menu-item">
+            <ModalLink
+              onClick={() => this.logout()}
+              to={'/how-to'}
+              data-cy="menu-item"
+            >
               <Flex color="rgba(27,27,27,0.5)">Log out</Flex>
             </ModalLink>
           </Flex>
-        </ModalContent>
+        </ModalContainerInner>
       </ModalContainer>
     )
   }
diff --git a/src/pages/Howto/Content/Howto/Howto.tsx b/src/pages/Howto/Content/Howto/Howto.tsx
index 8eee57f1e6..d5ba44fa6d 100644
--- a/src/pages/Howto/Content/Howto/Howto.tsx
+++ b/src/pages/Howto/Content/Howto/Howto.tsx
@@ -19,6 +19,7 @@ import WhiteBubble2 from 'src/assets/images/white-bubble_2.svg'
 import WhiteBubble3 from 'src/assets/images/white-bubble_3.svg'
 import { IUser } from 'src/models/user.models'
 import { Link } from 'src/components/Links'
+import { zIndex } from 'src/themes/styled.theme'
 
 // The parent container injects router props along with a custom slug parameter (RouteComponentProps<IRouterCustomParams>).
 // We also have injected the doc store to access its methods to get doc by slug.
@@ -41,7 +42,7 @@ const MoreBox = styled(Box)`
     background-image: url(${WhiteBubble0});
     width: 100%;
     height: 100%;
-    z-index: -1;
+    z-index: ${zIndex.behind};
     background-size: contain;
     background-repeat: no-repeat;
     position: absolute;
@@ -120,7 +121,9 @@ export class Howto extends React.Component<
             </Text>
             <Flex justifyContent={'center'} mt={2}>
               <Link to={'/how-to/'}>
-                <Button variant={'secondary'} data-cy="go-back">Back</Button>
+                <Button variant={'secondary'} data-cy="go-back">
+                  Back
+                </Button>
               </Link>
             </Flex>
           </MoreBox>
diff --git a/src/pages/Maps/Content/Controls/index.tsx b/src/pages/Maps/Content/Controls/index.tsx
index ff3a3c45b8..35fd5b2b3c 100644
--- a/src/pages/Maps/Content/Controls/index.tsx
+++ b/src/pages/Maps/Content/Controls/index.tsx
@@ -12,6 +12,7 @@ import { HashLink } from 'react-router-hash-link'
 import { AuthWrapper } from 'src/components/Auth/AuthWrapper'
 import { Map } from 'react-leaflet'
 import { ILocation } from 'src/models/common.models'
+import { zIndex } from 'src/themes/styled.theme'
 import { inject } from 'mobx-react'
 import { MapsStore } from 'src/stores/Maps/maps.store'
 
@@ -35,7 +36,7 @@ const MapFlexBar = styled(Flex)`
   position: absolute;
   top: 25px;
   width: 100%;
-  z-index: 3;
+  z-index: ${zIndex.mapFlexBar};
   left: 50%;
   transform: translateX(-50%);
 `
diff --git a/src/pages/User/content/UserPage/UserPage.tsx b/src/pages/User/content/UserPage/UserPage.tsx
index 289241e902..9f60b05995 100644
--- a/src/pages/User/content/UserPage/UserPage.tsx
+++ b/src/pages/User/content/UserPage/UserPage.tsx
@@ -17,6 +17,7 @@ import styled from 'styled-components'
 import Icon from 'src/components/Icons'
 import Flex from 'src/components/Flex'
 import ElWithBeforeIcon from 'src/components/ElWithBeforeIcon'
+import { zIndex } from 'src/themes/styled.theme'
 
 import theme from 'src/themes/styled.theme'
 import { capitalizeFirstLetter } from 'src/utils/helpers'
@@ -78,7 +79,7 @@ interface IProps {}
 const UserCategory = styled.div`
   position: relative;
   display: inline-block;
-  z-index: 1;
+  z-index: ${zIndex.default};
 
   &:after {
     content: '';
@@ -87,7 +88,7 @@ const UserCategory = styled.div`
     position: absolute;
     top: 0;
 
-    z-index: -1;
+    z-index: ${zIndex.behind};
     background-repeat: no-repeat;
     background-size: contain;
     left: 0;
diff --git a/src/pages/common/Header/Menu/Logo/Logo.tsx b/src/pages/common/Header/Menu/Logo/Logo.tsx
index 8b004e0fd9..a06b8a93a9 100644
--- a/src/pages/common/Header/Menu/Logo/Logo.tsx
+++ b/src/pages/common/Header/Menu/Logo/Logo.tsx
@@ -6,6 +6,7 @@ import LogoImage from 'src/assets/images/logo.svg'
 import MobileLogoImage from 'src/assets/images/logo-mobile.svg'
 import LogoBackground from 'src/assets/images/logo-background.svg'
 import Text from 'src/components/Text'
+import { zIndex } from 'src/themes/styled.theme'
 
 interface IProps {
   isMobile?: boolean
@@ -16,7 +17,18 @@ const LogoContainer = styled(Flex)`
   width: 200px;
   align-items: center;
   position: relative;
-
+  &:before {
+    content: '';
+    position: absolute;
+    background-image: url(${LogoBackground});
+    width: 250px;
+    height: 70px;
+    z-index: ${zIndex.logoContainer};
+    background-size: contain;
+    background-repeat: no-repeat;
+    top: 0;
+    left: 0px;
+  }
   @media only screen and (max-width: ${theme.breakpoints[1]}) {
     &:before {
       left: -50px;
diff --git a/src/pages/common/Header/Menu/MenuDesktop.tsx b/src/pages/common/Header/Menu/MenuDesktop.tsx
index 458ef36bfe..ec716e7d90 100644
--- a/src/pages/common/Header/Menu/MenuDesktop.tsx
+++ b/src/pages/common/Header/Menu/MenuDesktop.tsx
@@ -5,6 +5,7 @@ import theme from 'src/themes/styled.theme'
 import { Flex } from 'rebass/styled-components'
 import styled from 'styled-components'
 import MenuCurrent from 'src/assets/images/menu-current.svg'
+import { zIndex } from 'src/themes/styled.theme'
 
 const MenuLink = styled(NavLink).attrs(({ name }) => ({
   activeClassName: 'current',
@@ -13,7 +14,7 @@ const MenuLink = styled(NavLink).attrs(({ name }) => ({
   color: ${'black'};
   position: relative;
   > div {
-    z-index: 1;
+    z-index: ${zIndex.default};
     position: relative;
     &:hover {
       opacity: 0.7;
@@ -28,7 +29,7 @@ const MenuLink = styled(NavLink).attrs(({ name }) => ({
       position: absolute;
       bottom: -6px;
       background-image: url(${MenuCurrent});
-      z-index: 0;
+      z-index: ${zIndex.level};
       background-repeat: no-repeat;
       background-size: contain;
       left: 50%;
diff --git a/src/pages/common/Header/Menu/Profile/ProfileButtonItem.tsx b/src/pages/common/Header/Menu/Profile/ProfileButtonItem.tsx
index 28ff378473..1c7b873879 100644
--- a/src/pages/common/Header/Menu/Profile/ProfileButtonItem.tsx
+++ b/src/pages/common/Header/Menu/Profile/ProfileButtonItem.tsx
@@ -47,9 +47,7 @@ export class ProfileButtonItem extends React.Component<IProps> {
                 ? ['flex', 'flex', 'none']
                 : ['none', 'none', 'flex']
             }
-            {...(this.props.isMobile
-              ? { large: true }
-              : { medium: true })}
+            {...(this.props.isMobile ? { large: true } : { medium: true })}
             data-cy={this.props.text.toLowerCase()}
             style={this.props.style}
           >
diff --git a/src/themes/app.globalStyle.js b/src/themes/app.globalStyle.js
index 0ca9153b3a..72cbbfa1a6 100644
--- a/src/themes/app.globalStyle.js
+++ b/src/themes/app.globalStyle.js
@@ -1,5 +1,5 @@
 import { createGlobalStyle } from 'styled-components'
-import theme from 'src/themes/styled.theme'
+import theme, { zIndex } from 'src/themes/styled.theme'
 // Import css files for Slick-slider
 // import "../../node_modules/slick-carousel/slick/slick.css";
 // import "../../node_modules/slick-carousel/slick/slick-theme.css";
@@ -34,7 +34,7 @@ export const GlobalStyle = createGlobalStyle`
   .slick-next {
     position: absolute;
     top: 50%;
-    z-index: 100;
+    z-index: ${zIndex.slickArrows};
     transform: translateY(-50%);
     cursor: pointer;
   }
diff --git a/src/themes/styled.theme.tsx b/src/themes/styled.theme.tsx
index 8ab3f9f512..abba6cb439 100644
--- a/src/themes/styled.theme.tsx
+++ b/src/themes/styled.theme.tsx
@@ -16,6 +16,18 @@ export const colors = {
   silver: '#c0c0c0',
 }
 
+export const zIndex = {
+  behind: -1,
+  level: 0,
+  default: 1,
+  modalBackdrop: 9,
+  modalContent: 10,
+  slickArrows: 100,
+  modalProfile: 900,
+  logoContainer: 999,
+  mapFlexBar: 99999,
+}
+
 export type ButtonVariants =
   | 'primary'
   | 'secondary'
@@ -176,4 +188,5 @@ export default {
   maxContainerWidth,
   regular,
   bold,
+  zIndex,
 }