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index 19762f9..573112e 100644
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@@ -29,6 +29,7 @@
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@@ -9423,6 +9424,11 @@
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index c3ef1f4..f851524 100644
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index e7efef4..63d00b0 100644
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     <meta name="theme-color" content="#000000" />
     <meta
       name="description"
-      content="Web site created using create-react-app"
+      content="프론트엔드 개발자 이현지의 포트폴리오 사이트 입니다!"
     />
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo.svg" />
     <!--
diff --git a/src/App.tsx b/src/App.tsx
index a39e1e6..6fe3f2b 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -5,6 +5,7 @@ import { Project } from './pages/Project';
 import { Board } from './pages/Board';
 import HeaderMenu from './components/HeaderMenu';
 import { useRef } from 'react';
+import { RecoilRoot } from 'recoil';
 
 function App() {
   const IntroRef=useRef<HTMLDivElement>(null);
@@ -15,14 +16,14 @@ function App() {
   const RefList=[IntroRef, AboutRef, SkillRef, ProjectRef, BoardRef];
 
   return (
-        <>
+        <RecoilRoot>
           <HeaderMenu menuRef={RefList}/>
           <Intro introRef={IntroRef} nextRef={AboutRef}/>
           <About aboutRef={AboutRef} nextRef={SkillRef}/>
           <Skill skillRef={SkillRef} nextRef={ProjectRef}/>
           <Project projectRef={ProjectRef} nextRef={BoardRef}/>
           <Board boardRef={BoardRef}/>
-        </>
+        </RecoilRoot>
   );
 }
 
diff --git a/src/components/Project/ProjectData.tsx b/src/components/Project/ProjectData.tsx
index 893b80e..9f61dbf 100644
--- a/src/components/Project/ProjectData.tsx
+++ b/src/components/Project/ProjectData.tsx
@@ -15,7 +15,7 @@ export const ProjectData=[
     {
         title:"Portfolio",
         member:"Solo Project",
-        images:["/images/project/portfolio/portfolio-1.png","/images/project/portfolio/portfolio-2.png","/images/project/portfolio/portfolio-3.png","/images/project/portfolio/portfolio-4.png"],
+        images:["/images/project/portfolio/portfolio-1.png","/images/project/portfolio/portfolio-2.png","/images/project/portfolio/portfolio-3.png","/images/project/portfolio/portfolio-4.png","/images/project/portfolio/portfolio-5.png"],
         github:"https://github.com/hyunji-lee99/fe_portfolio",
         hosturl:"https://1eehyunji.com/",
         introduce:"지금까지 쌓아온 프론트엔드 기술 역량을 보여주고, 개발 과정에서 더 나은 코드와 구조, 기술에 대한 학습을 위해 동적인 반응형 웹 프론트엔드 포트폴리오 페이지를 개발 중에 있습니다. 꾸준히 코드 리팩토링을 진행할 예정입니다.",
diff --git a/src/pages/About.tsx b/src/pages/About.tsx
index c6881e4..0663ed7 100644
--- a/src/pages/About.tsx
+++ b/src/pages/About.tsx
@@ -1,8 +1,8 @@
 import { useEffect, useRef, useState } from "react";
-import { styled } from "styled-components";
+import { keyframes, styled } from "styled-components";
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 import { faArrowRight, faArrowLeft } from "@fortawesome/free-solid-svg-icons";
-
+import { useInView } from "react-intersection-observer";
 import { DownButton } from "../components/common/DownButton";
 import { RenderEducation } from "../components/About/RenderEducation";
 import { RenderCareer } from "../components/About/RenderCareer";
@@ -42,6 +42,15 @@ const InfoSliderWrapper=styled.div`
     height:100%;
     display:flex;
 `
+const SlideLeft=keyframes`
+  0%{
+    transform: translateX(100%);
+  }
+  100%{
+    transform: translateX(0%);
+  }
+`
+
 const SliderButtonWrapper=styled.div`
     position:relative;
     display:flex;
@@ -51,6 +60,9 @@ const SliderButtonWrapper=styled.div`
     width:100%;
     height: 60%;
   }
+  &.startAnimation{
+    animation: ${SlideLeft} 0.5s linear;
+  }
 `
 const Button=styled.button`
   font-size:1rem;
@@ -80,15 +92,23 @@ type AboutProps={
 
 export function About(prop:AboutProps){
   const [currentInfo, setCurrentInfo]=useState(0);
+  const [onSlider, setOnSlider]=useState(false);
   const SlideRef=useRef<HTMLDivElement>(null);
-
+  const {ref,inView}=useInView()
   useEffect(()=>{
     if(SlideRef.current){
         const slideRange=SlideRef.current.offsetWidth*currentInfo;
         SlideRef.current.style.transition = "all 0.5s ease-in-out";
         SlideRef.current.style.transform=`translateX(-${slideRange}px)`
     }
-  },[currentInfo])
+    if (inView){
+      setOnSlider(true);
+    }
+    else{
+      setOnSlider(false);
+    }
+
+  },[currentInfo,inView])
 
   const onClickPrevButton=()=>{
       if (currentInfo===0){
@@ -111,7 +131,7 @@ export function About(prop:AboutProps){
     <Div ref={prop.aboutRef}>
         <Descriptions/>
         {/* slider 컴포넌트화 필요 */}
-        <SliderButtonWrapper>
+        <SliderButtonWrapper ref={ref} className={onSlider?"startAnimation":""}>
         <Button onClick={onClickPrevButton} style={{left:'-10%'}}>
             <FontAwesomeIcon icon={faArrowLeft}></FontAwesomeIcon>
         </Button>
diff --git a/src/pages/Project.tsx b/src/pages/Project.tsx
index 4e7a630..7a1dcaa 100644
--- a/src/pages/Project.tsx
+++ b/src/pages/Project.tsx
@@ -26,5 +26,5 @@ export function Project(prop:ProjectProps){
         <ProjectList index={curPage}/>
         <ProjectMoveButton PageSelect={setCurPage}/>
         <DownButton location={prop.nextRef}/>
-    </Div>);
+    </Div>);  
 }
\ No newline at end of file