diff --git a/src/App.js b/src/App.js
index 512689822628f55d908b129d3fcd267f81f3f22e..18a518916255cebc55e9e55eaaac7c609b909fba 100644
--- a/src/App.js
+++ b/src/App.js
@@ -52,6 +52,7 @@ import CollectionPage from "./Pages/CollectionPage.js";
 import FormationMaterialPage from "./Pages/FormationMaterialPage.js";
 import FormationMaterialIframe from "./Pages/FormationMaterialIframe.js";
 import MaterialPage from "./Pages/MaterialPage";
+import PageNotFound from "./Pages/PageNotFound.js";
 
 import NoteVariables from "./Admin/Pages/Pages/SubPages/NoteVariables";
 import Institution from "./Admin/Pages/Pages/SubPages/Institutions";
@@ -203,6 +204,7 @@ export default function App() {
         <Route path="/topico" component={FormationMaterialPage} />
         <Route path="/iframe-colecao" component={FormationMaterialIframe} />
         <Route path="/material-formacao" component={MaterialPage} />
+        <Route path='*' component={PageNotFound} />
         <div style={{ backgroundColor: "	#D3D3D3" }}>
           <AppBarAdmin />
           <div style={{ padding: "2em" }}>
diff --git a/src/Components/CollectionCardFunction.js b/src/Components/CollectionCardFunction.js
index 6f7322e7261536655d78098ad28b3639e87af2a5..e0c4a517972fe4cfb0fe8de5d2f97a6cd33f20e1 100644
--- a/src/Components/CollectionCardFunction.js
+++ b/src/Components/CollectionCardFunction.js
@@ -193,39 +193,40 @@ export default function CollectionCardFunction(props) {
       <StyledCard>
         <CardDiv>
           <CardReaDiv>
-            <Header onMouseEnter={controlSlide} onMouseLeave={controlSlide}>
-              <Slide direction="left" in={slideIn} timeout={1000}>
-                <div className={`slideContentLinkAfterActive${slideIn}`} style={{ width: '100%', height: "100%" }}>
-                  <Link to={"/colecao-do-usuario/" + props.id} className="text" style={{ textDecoration: "none" }} >
-                    {SlideAnimationContent()}
-                  </Link>
+            <Link to={"/colecao-do-usuario/" + props.id}>
+              <Header onMouseEnter={controlSlide} onMouseLeave={controlSlide}>
+                <div className={`slideContentLinkBeforeActive${slideIn}`} style={{ width: '272.5px', height: '230px' }}>
+                  <UserInfo style={{ width: '272.5px'}}>
+                    {/* I(Luis) dont know why, but if i use styled components, sometimes the avatar will be deconfigured */}
+                    <img src={userAvatar} alt="user avatar" style={{
+                      height: "70px", width: "70px", borderRadius: "50%",
+                      zIndex: 1, border: "2px solid white",
+                      boxShadow: "0 1px 3px rgba(0,0,0,.45)"
+                    }} />
+                    <UserAndTitle>
+                      <span>{props.author}</span>
+                      <span className={"col-name"}>{name}</span>
+                    </UserAndTitle>
+                  </UserInfo>
+                  <StyledGrid container direction="row" style={{ width: '272.5px'}}>
+                    {
+                      props.thumbnails.map((thumb) =>
+                        <Grid item xs={props.thumbnails <= 4 && props.thumbnails > 0 ? 12 / props.thumbnails.length : 6}>
+                          <div style={{ backgroundImage: `url(${`${apiDomain}` + thumb})`, height: "100%", width: "100%", backgroundSize: "cover", backgroundPosition: "center" }} />
+                        </Grid>
+                      )
+                    }
+                  </StyledGrid>
                 </div>
-              </Slide>
-              <div className={`slideContentLinkBeforeActive${slideIn}`} style={{ width: '100%', height: '100%' }}>
-                <UserInfo>
-                  {/* I(Luis) dont know why, but if i use styled components, sometimes the avatar will be deconfigured */}
-                  <img src={userAvatar} alt="user avatar" style={{
-                    height: "70px", width: "70px", borderRadius: "50%",
-                    zIndex: 1, border: "2px solid white",
-                    boxShadow: "0 1px 3px rgba(0,0,0,.45)"
-
-                  }} />
-                  <UserAndTitle>
-                    <span>{props.author}</span>
-                    <span className={"col-name"}>{name}</span>
-                  </UserAndTitle>
-                </UserInfo>
-                <StyledGrid container direction="row">
-                  {
-                    props.thumbnails.map((thumb) =>
-                      <Grid item xs={props.thumbnails <= 4 && props.thumbnails > 0 ? 12 / props.thumbnails.length : 6}>
-                        <div style={{ backgroundImage: `url(${`${apiDomain}` + thumb})`, height: "100%", width: "100%", backgroundSize: "cover", backgroundPosition: "center" }} />
-                      </Grid>
-                    )
-                  }
-                </StyledGrid>
-              </div>
-            </Header>
+                {
+                  <div className={`slideContentLinkAfterActive${slideIn}`} style={{ width: '272.5px', height: '230px' }}>
+                    <div className="text" >
+                      {SlideAnimationContent()}
+                    </div>
+                  </div>
+                }
+              </Header>
+            </Link>
 
             <Description> {/*renders rating, number of learning objects and likes count*/}
               {
@@ -315,8 +316,8 @@ export default function CollectionCardFunction(props) {
 const SlideContentDiv = styled.div`
     background-color : #7e57c2;
     padding : 10px;
-    width : 100%;
-    height : 100%;
+    width : 272.5px;
+    height : 230px;
 `
 
 const UserAndTitle = styled.div`
diff --git a/src/Components/ResourceCard.css b/src/Components/ResourceCard.css
index c7b97b5cb76d3373765410177a1cfd4749a31fef..345a97b61a931e5b09c711afb69a4c192cb4b7d6 100644
--- a/src/Components/ResourceCard.css
+++ b/src/Components/ResourceCard.css
@@ -1,22 +1,26 @@
 /* transform: translateX(-1284.61px); visibility: hidden; */
-/* .slideContentLinkAfterActivefalse{
-    transform: translateX(-1285.55px);
+.slideContentLinkAfterActivefalse{
     position: relative;
-}*/
-.slideContentLinkAfterActivetrue{
-    position: absolute;
     transform: none;
+    transition: cubic-bezier(1, 1, 0, 0) 750ms;
+}
+
+.slideContentLinkAfterActivetrue{
+    transform: translateX(-272.5px);
+    transition: transform 750ms;
+    position: relative;
     /* transition: transform 1000ms cubic-bezier(0,0,0.2,1) 0ms; */
 
 } 
 
 .slideContentLinkBeforeActivefalse{
-    position: absolute;
+    position: relative;
     transform: none;
-    transition: transform 500ms cubic-bezier(0,0,0.2,1) 0ms;
+    transition: cubic-bezier(0, 0, 1, 1) 750ms;
    
 }
 .slideContentLinkBeforeActivetrue{
-    transform: translateX(-1285.55px);
+    transform: translateX(-272.5px);
+    transition: transform 750ms;
     position: relative;
 }
\ No newline at end of file
diff --git a/src/Components/ResourceCardFunction.js b/src/Components/ResourceCardFunction.js
index d688ca3e6e154871fc8633416529f651e531e530..6648dbbd2a790f5e9b15c259268ae80c0801c21e 100644
--- a/src/Components/ResourceCardFunction.js
+++ b/src/Components/ResourceCardFunction.js
@@ -34,6 +34,10 @@ import { getDefaultThumbnail } from './HelperFunctions/getDefaultThumbnail'
 import GetIconByName from './UploadPageComponents/GetIconByName'
 import "./ResourceCard.css";
 import { putRequest } from './HelperFunctions/getAxiosConfig'
+import SignUpModal from './SignUpModal'
+import LoginModal from './LoginModal.js'
+import Snackbar from '@material-ui/core/Snackbar';
+import MuiAlert from '@material-ui/lab/Alert';
 
 export default function ResourceCardFunction(props) {
     const [thumbnail, setThumbnail] = useState(null)
@@ -45,6 +49,14 @@ export default function ResourceCardFunction(props) {
     const [liked, toggleLiked] = useState(props.liked)
     const [likesCount, setLikesCount] = useState(props.likeCount)
 
+    const [signUpOpen, setSignUp] = useState(false)
+    const [loginOpen, setLogin] = useState(false)
+    const [successfulLoginOpen, handleSuccessfulLogin] = useState(false)
+
+    function Alert(props) {
+        return <MuiAlert elevation={6} variant="filled" {...props} />;
+    }
+
     useEffect(() => {
         //decide which thumbnail to use
         if (props.thumbnail) {
@@ -74,6 +86,21 @@ export default function ResourceCardFunction(props) {
         putRequest(url, {}, handleSuccessLike, (error) => { console.log(error) })
     }
 
+    const handleLogin = () => {
+        setLogin(!loginOpen)
+    }
+
+    const handleSignUp = () => {
+        setSignUp(!signUpOpen)
+    }
+
+    function toggleLoginSnackbar(reason) {
+        if (reason === 'clickaway') {
+            return;
+        }
+        handleSuccessfulLogin(false);
+    }
+
     const SlideAnimationContent = () => {
         return (
             <SlideContentDiv>
@@ -106,64 +133,77 @@ export default function ResourceCardFunction(props) {
     }
 
     return (
-        <StyledCard>
-            <CardDiv>
-                <CardReaDiv>
-                    <Header onMouseEnter={controlSlide} onMouseLeave={controlSlide}>
-                        {
-                            <Slide direction="left" in={slideIn} timeout={1000}>
-                                <div className={`slideContentLinkAfterActive${slideIn}`}>
-                                    <Link to={props.href} className="text" >
-                                        {SlideAnimationContent()}
-                                    </Link>
+        <React.Fragment>
+            <SignUpModal open={signUpOpen} handleClose={handleSignUp} openLogin={handleLogin}
+            />
+            <LoginModal open={loginOpen} handleClose={() => setLogin(false)} openSignUp={handleSignUp}
+                openSnackbar={() => { handleSuccessfulLogin(true) }}
+            />
+            <Snackbar open={successfulLoginOpen} autoHideDuration={1000} onClose={toggleLoginSnackbar}
+                anchorOrigin={{ vertical: 'top', horizontal: 'center' }}
+            >
+                <Alert severity="success" style={{ backgroundColor: "#00acc1" }}>Você está conectado(a)!</Alert>
+            </Snackbar>
+            <StyledCard>
+                <CardDiv>
+                    <CardReaDiv>
+                        <Link to={props.href}>
+                            <Header onMouseEnter={controlSlide} onMouseLeave={controlSlide}>
+                                <div className={`slideContentLinkBeforeActive${slideIn}`} style={{ height: '189px' }}>
+                                    <img className="img-cover" src={thumbnail} alt="learning object thumbnail" style={{ width: "272.5px" }} />
                                 </div>
-                            </Slide >
-                        }
-                        <div className={`slideContentLinkBeforeActive${slideIn}`} style={{ height: '100%' }}>
-                            <img className="img-cover" src={thumbnail} alt="learning object thumbnail" style={{ width: "272.5px" }} />
-                        </div>
-                    </Header>
-                    <Description>
-                        <Link to={props.href} className="text" style={{ height: '45px' }}> {/*add link to learningObject*/}
-                            <Title>
-                                {props.title}
-                            </Title>
+                                {
+                                    <div className={`slideContentLinkAfterActive${slideIn}`}>
+                                        <div className="text" >
+                                            {SlideAnimationContent()}
+                                        </div>
+                                    </div>
+                                }
+                            </Header>
                         </Link>
-                        <Rating
-                            name="customized-empty"
-                            value={props.rating}
-                            readOnly
-                            style={{ color: "#666" }}
-                            emptyIcon={<StarBorderIcon fontSize="inherit" />}
-                        />
-                        <Footer>
-                            <Type>
-                                {GetIconByName(label)}
-                                <span>{label}</span>
-                            </Type>
-                            <LikeCounter>
-                                <span>{likesCount}</span>
-                                <ButtonNoWidth onClick={handleLike}>
-                                    <FavoriteIcon style={{ color: liked ? "red" : "#666" }} />
-                                </ButtonNoWidth>
-                            </LikeCounter>
-                        </Footer>
-                    </Description>
-                </CardReaDiv>
-                <CardReaFooter>
-                    <div style={{ display: "flex", height: "100%" }}>
-                        <ButtonGuardarColecao thumb={props.thumbnail} title={props.title} learningObjectId={props.id}
+                        <Description>
+                            <Link to={props.href} className="text" style={{ height: '45px' }}> {/*add link to learningObject*/}
+                                <Title>
+                                    {props.title}
+                                </Title>
+                            </Link>
+                            <Rating
+                                name="customized-empty"
+                                value={props.rating}
+                                readOnly
+                                style={{ color: "#666" }}
+                                emptyIcon={<StarBorderIcon fontSize="inherit" />}
+                            />
+                            <Footer>
+                                <Type>
+                                    {GetIconByName(label)}
+                                    <span>{label}</span>
+                                </Type>
+                                <LikeCounter>
+                                    <span>{likesCount}</span>
+                                    <ButtonNoWidth onClick={handleLike}>
+                                        <FavoriteIcon style={{ color: liked ? "red" : "#666" }} />
+                                    </ButtonNoWidth>
+                                </LikeCounter>
+                            </Footer>
+                        </Description>
+                    </CardReaDiv>
+                    <CardReaFooter>
+                        <div style={{ display: "flex", height: "100%" }}>
+                            <ButtonGuardarColecao thumb={props.thumbnail} title={props.title} learningObjectId={props.id}
+                            />
+                        </div>
+                        <ResourceCardOptions
+                            learningObjectId={props.id}
+                            downloadableLink={props.downloadableLink}
+                            thumb={props.thumbnail}
+                            title={props.title}
+                            handleLogin={handleLogin}
                         />
-                    </div>
-                    <ResourceCardOptions
-                        learningObjectId={props.id}
-                        downloadableLink={props.downloadableLink}
-                        thumb={props.thumbnail}
-                        title={props.title}
-                    />
-                </CardReaFooter>
-            </CardDiv>
-        </StyledCard>
+                    </CardReaFooter>
+                </CardDiv>
+            </StyledCard>
+        </React.Fragment>
     )
 }
 /*---------- USED IN SLIDE DIV ONLY -----------*/
diff --git a/src/Components/ResourceCardOptions.js b/src/Components/ResourceCardOptions.js
index 5d2821f3d9a39cc92af23d5ff1fa7c71de868777..2e89a35a708663188a9e843c3fbb08c8de6deaff 100644
--- a/src/Components/ResourceCardOptions.js
+++ b/src/Components/ResourceCardOptions.js
@@ -36,10 +36,6 @@ import ShareModal from './ShareModal'
 import SnackbarComponent from './SnackbarComponent'
 import OpenInBrowserIcon from '@material-ui/icons/OpenInBrowser';
 import Tooltip from '@material-ui/core/Tooltip';
-import SignUpModal from './SignUpModal'
-import LoginModal from './LoginModal.js'
-import Snackbar from '@material-ui/core/Snackbar';
-import MuiAlert from '@material-ui/lab/Alert';
 import { getRequest } from './HelperFunctions/getAxiosConfig'
 
 export default function ResourceCardOptions(props) {
@@ -68,7 +64,7 @@ export default function ResourceCardOptions(props) {
     const [saveToCol, toggleSave] = useState(false)
     const handleGuardar = () => {
         if (!state.currentUser.id) {
-            handleLogin();
+            props.handleLogin();
         }
         else {
             toggleSave(true);
@@ -93,7 +89,7 @@ export default function ResourceCardOptions(props) {
 
     const handleShare = () => {
         if (!state.currentUser.id) {
-            handleLogin()
+            props.handleLogin()
         }
         else {
             toggleShare(true);
@@ -104,17 +100,9 @@ export default function ResourceCardOptions(props) {
         return (window.origin + "/recurso/" + props.learningObjectId)
     }
 
-    const handleSignUp = () => {
-        setSignUp(!signUpOpen)
-    }
-
-    const handleLogin = () => {
-        setLogin(!loginOpen)
-    }
-
     const handleReport = () => {
         if (!state.currentUser.id) {
-            handleLogin()
+            props.handleLogin()
         }
         else {
             handleModalReportar(true);
@@ -122,21 +110,7 @@ export default function ResourceCardOptions(props) {
         handleClose();
     }
 
-    function Alert(props) {
-        return <MuiAlert elevation={6} variant="filled" {...props} />;
-    }
-
-    function toggleLoginSnackbar(reason) {
-        if (reason === 'clickaway') {
-            return;
-        }
-        handleSuccessfulLogin(false);
-    }
-
     const [snackbarOpen, toggleSnackbar] = useState(false)
-    const [signUpOpen, setSignUp] = useState(false)
-    const [loginOpen, setLogin] = useState(false)
-    const [successfulLoginOpen, handleSuccessfulLogin] = useState(false)
 
     return (
         <>
@@ -155,16 +129,6 @@ export default function ResourceCardOptions(props) {
                 />
                 <SnackbarComponent snackbarOpen={snackbarOpen} severity={"info"} handleClose={() => { toggleSnackbar(false) }} text={"Baixando o Recurso... Lembre-se de relatar sua experiência após o uso do Recurso!"}
                 />
-                <SignUpModal open={signUpOpen} handleClose={handleSignUp} openLogin={handleLogin}
-                />
-                <LoginModal open={loginOpen} handleClose={() => setLogin(false)} openSignUp={handleSignUp}
-                    openSnackbar={() => { handleSuccessfulLogin(true) }}
-                />
-                <Snackbar open={successfulLoginOpen} autoHideDuration={1000} onClose={toggleLoginSnackbar}
-                    anchorOrigin={{ vertical: 'top', horizontal: 'center' }}
-                >
-                    <Alert severity="success" style={{ backgroundColor: "#00acc1" }}>Você está conectado(a)!</Alert>
-                </Snackbar>
                 <div style={{ fontSize: "12px", display: "flex", flexDirection: "column", justifyContent: "center" }}>
                     <ButtonNoWidth aria-controls="simple-menu" aria-haspopup="true" onClick={handleClick} style={{ color: "#666" }}>
                         <MoreVertIcon style={{ color: "#666" }} />
diff --git a/src/Components/TabPanels/UserPageTabs/PanelEditarPerfil.js b/src/Components/TabPanels/UserPageTabs/PanelEditarPerfil.js
index ce5a319efaacbf631c7a3871c0ee8672a8f68db1..f65e6417a460b08bf87221fb28aa8cec321a2c97 100644
--- a/src/Components/TabPanels/UserPageTabs/PanelEditarPerfil.js
+++ b/src/Components/TabPanels/UserPageTabs/PanelEditarPerfil.js
@@ -42,7 +42,7 @@ export default function TabPanelEditarPerfil(props) {
     })
 
     const [formAboutMe, setAboutMe] = useState({
-        key: state.currentUser.description ? false : true,
+        key: false,
         value: state.currentUser.description ? state.currentUser.description : ""
     })
 
diff --git a/src/Pages/PageNotFound.js b/src/Pages/PageNotFound.js
new file mode 100644
index 0000000000000000000000000000000000000000..7e9a5b0ca55aa05bc584bad105e8ebe0f3f306e5
--- /dev/null
+++ b/src/Pages/PageNotFound.js
@@ -0,0 +1,44 @@
+/*Copyright (C) 2019 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana
+
+This file is part of Plataforma Integrada MEC.
+
+Plataforma Integrada MEC is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Plataforma Integrada MEC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with Plataforma Integrada MEC.  If not, see <http://www.gnu.org/licenses/>.*/
+
+import React from 'react';
+import styled from "styled-components";
+
+export default function PageNotFound (props) {
+    return (
+        <div>
+            <link
+                href="https://fonts.googleapis.com/css?family=Roboto:100,400,500&display=swap"
+                rel="stylesheet"
+            />
+            <StyledDiv><span style={{ fontSize: '50px' }}>Desculpe</span></StyledDiv>
+            <StyledDiv><span style={{ fontSize: '30px' }}>Não foi possível encontrar a página que você está procurando.</span></StyledDiv>
+            <StyledDiv><a href='/'><span style={{ fontSize: '20px' }}>Voltar para a página inicial</span></a></StyledDiv>
+        </div>
+    )
+}
+
+const StyledDiv = styled('div')`
+    width: 100%;
+    margin-top: 70px;
+    margin-bottom: 70px;
+    justify-content : space-evenly;
+    display: flex;
+    color: #757575; 
+    text-align:center;   
+`
\ No newline at end of file
diff --git a/src/Pages/Search.js b/src/Pages/Search.js
index db1c0201834e8a4b54f7ac4f3313425255cf436e..9b6689c2f054f3f37a010e9f8f9d1f3e35a76870 100644
--- a/src/Pages/Search.js
+++ b/src/Pages/Search.js
@@ -142,7 +142,7 @@ export default function Search(props) {
   }, [window.history.state === null ? true : window.history.state.key, state.currentUser.id])
 
   useEffect(() => {
-    setIsLoading(true);
+    //setIsLoading(true);
     collectStuff(option);
   }, [resultsPerPage]);
 
diff --git a/src/index.css b/src/index.css
index 954a9e8f75d3224cd71757bc80193fdaad5ac914..c58acf407174355d6850f9fb9dc97e2d466826c5 100755
--- a/src/index.css
+++ b/src/index.css
@@ -17,6 +17,9 @@ You should have received a copy of the GNU Affero General Public License
 along with Plataforma Integrada MEC.  If not, see <http://www.gnu.org/licenses/>.*/
 
 body {
+  width: 100%;
+  height: 100%;
+  overflow-x: hidden;
   margin: 0;
   padding: 0;
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",