diff --git a/assets/icons/close.svg b/assets/icons/close.svg
new file mode 100644
index 0000000..b01b946
--- /dev/null
+++ b/assets/icons/close.svg
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg width="100%" height="100%" viewBox="0 0 22 22" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:1.41421;"><path d="M18.703,1.405l-7.675,7.732l-7.674,-7.732c-0.54,-0.54 -1.405,-0.54 -1.892,0c-0.54,0.541 -0.54,1.406 0,1.892l7.675,7.731l-7.732,7.675c-0.54,0.54 -0.54,1.405 0,1.892c0.541,0.54 1.406,0.54 1.892,0l7.731,-7.675l7.675,7.675c0.54,0.54 1.405,0.54 1.892,0c0.487,-0.541 0.54,-1.405 0,-1.892l-7.675,-7.675l7.675,-7.674c0.54,-0.54 0.54,-1.405 0,-1.892c-0.484,-0.54 -1.352,-0.54 -1.892,-0.057Z" style="fill:#7e8991;"/></svg>
\ No newline at end of file
diff --git a/js/components/Header.js b/js/components/Header.js
index cf23918..aed6152 100644
--- a/js/components/Header.js
+++ b/js/components/Header.js
@@ -1,34 +1,68 @@
 import React from 'react';
+import classNames from 'classnames';
 import Branding from './Branding';
 import Link from './Link';
 import LogoLink from './LogoLink';
+import Search from './Search';
 import { getItemPageNames } from '../../common/config';
 
-export default function Header({ pageName }) {
+class Header extends React.Component {
+  constructor(...args) {
+    super(...args);
+    this.state = {
+      searchOpen: false,
+    };
+  }
 
-  const smallLogo = pageName !== 'index';
+  openSearch = () => {
+    this.setState({
+      searchOpen: true,
+    });
+  }
 
-  return (
-    <Branding
-      logoContent={<LogoLink small={smallLogo} />}
-    >
-      <div className="nav">
-        <div className="nav__item">
-          <Link pageName="help" className="icon-link">
-            <span className="icon icon--question icon-link__icon"></span>How to Use Technology Radar?
-          </Link>
+  closeSearch = () => {
+    this.setState({
+      searchOpen: false,
+    });
+  }
+
+  handleOpenClick = (e) => {
+    e.preventDefault();
+    this.openSearch();
+  }
+
+  render() {
+    const { pageName } = this.props;
+    const { searchOpen } = this.state;
+    const smallLogo = pageName !== 'index';
+
+    return (
+      <Branding
+        logoContent={<LogoLink small={smallLogo} />}
+      >
+        <div className="nav">
+          <div className="nav__item">
+            <Link pageName="help" className="icon-link">
+              <span className="icon icon--question icon-link__icon"></span>How to Use Technology Radar?
+            </Link>
+          </div>
+          <div className="nav__item">
+            <Link pageName="overview" className="icon-link">
+              <span className="icon icon--overview icon-link__icon"></span>Technologies Overview
+            </Link>
+          </div>
+          <div className="nav__item">
+            <a className="icon-link" href="#" onClick={this.handleOpenClick}>
+              <span className="icon icon--search icon-link__icon"></span>Search
+            </a>
+            <div className={classNames('nav__search', { 'is-open': searchOpen })}>
+              <Search onClose={this.closeSearch} open={searchOpen} />
+            </div>
+          </div>
         </div>
-        <div className="nav__item">
-          <Link pageName="overview" className="icon-link">
-            <span className="icon icon--overview icon-link__icon"></span>Technologies Overview
-          </Link>
-        </div>
-        <div className="nav__item">
-          <a className="icon-link" href="#todo">
-            <span className="icon icon--search icon-link__icon"></span>Search
-          </a>
-        </div>
-      </div>
-    </Branding>
-  );
+      </Branding>
+    );
+  }
 }
+
+export default Header;
diff --git a/js/components/PageOverview.js b/js/components/PageOverview.js
index 4941360..baeb17d 100644
--- a/js/components/PageOverview.js
+++ b/js/components/PageOverview.js
@@ -30,7 +30,6 @@ class PageOverview extends React.Component {
     e.preventDefault();
 
     this.setState({
-      ...this.state,
       ring,
     });
   }
@@ -66,7 +65,6 @@ class PageOverview extends React.Component {
 
   handleSearchTermChange = (value) => {
     this.setState({
-      ...this.state,
       search: value,
     });
   };
diff --git a/js/components/Search.js b/js/components/Search.js
index eb7082c..9c42eb2 100644
--- a/js/components/Search.js
+++ b/js/components/Search.js
@@ -1,14 +1,21 @@
 import React from 'react';
 import classNames from 'classnames';
 
-export default function Search({ value, onChange, onSubmit = () => {} }) {
+export default function Search({ value, onChange, onClose, open = false, onSubmit = () => {} }) {
+  const closable = typeof onClose === 'function';
+
   const handleSubmit = (e) => {
     e.preventDefault();
     onSubmit();
   };
 
+  const handleClose = (e) => {
+    e.preventDefault();
+    onClose();
+  }
+
   return (
-    <form className="search" onSubmit={handleSubmit}>
+    <form className={classNames('search', { 'search--closable': closable })} onSubmit={handleSubmit}>
       <input
         value={value}
         type="text"
@@ -16,12 +23,19 @@ export default function Search({ value, onChange, onSubmit = () => {} }) {
         className="search__field"
         placeholder="What are you looking for?"
       />
-      <span className="search__button">
+      <span className={classNames('search__button', { 'is-open': open })}>
         <button type="submit" className="button">
           <span className="icon icon--search button__icon" />
           Search
         </button>
       </span>
+      {
+        closable && (
+          <a href="#" className={classNames('search__close', { 'is-open': open })} onClick={handleClose}>
+            <span className="icon icon--close" />
+          </a>
+        )
+      }
     </form>
   );
 }
diff --git a/styles/components/icon.css b/styles/components/icon.css
index 5d35991..863de03 100644
--- a/styles/components/icon.css
+++ b/styles/components/icon.css
@@ -26,4 +26,8 @@
   &--back {
     background-image: url('/assets/icons/back.svg');
   }
+
+  &--close {
+    background-image: url('/assets/icons/close.svg');
+  }
 }
diff --git a/styles/components/nav.css b/styles/components/nav.css
index 48ba412..e041f56 100644
--- a/styles/components/nav.css
+++ b/styles/components/nav.css
@@ -1,9 +1,33 @@
 .nav {
   white-space: nowrap;
+
   &__item {
     display: inline-flex;
+    position: relative;
     & + .nav__item {
       margin-left: 20px;
     }
   }
+
+  &__search {
+    position: absolute;
+    right: 0;
+    top: 50%;
+    visibility: hidden;
+    overflow: hidden;
+    width: 0;
+    margin-top: -25px;
+    opacity: 0.8;
+    transition:
+      width 400ms cubic-bezier(0.24, 1.12, 0.71, 0.98) 100ms,
+      visibility 0s linear 500ms,
+      opacity 200ms linear;
+
+    &.is-open {
+      opacity: 1;
+      width: 600px;
+      visibility: visible;
+      transition-delay: 0s;
+    }
+  }
 }
diff --git a/styles/components/search.css b/styles/components/search.css
index 1f63c36..7cf13f6 100644
--- a/styles/components/search.css
+++ b/styles/components/search.css
@@ -35,4 +35,38 @@
     margin-top: -18px;
     right: 7px;
   }
+
+  &--closable {
+    .search {
+      &__field {
+        padding-right: 160px;
+      }
+
+      &__button {
+        right: 50px;
+        transform: translateX(20px);
+        transition: transform 450ms cubic-bezier(0.24, 1.12, 0.71, 0.98) 100ms;
+
+        &.is-open {
+          transform: translateX(0);
+          transition-delay: 250ms;
+        }
+      }
+
+      &__close {
+        position: absolute;
+        padding: 10px;
+        top: 50%;
+        margin-top: -21px;
+        right: 4px;
+        transform: scale(0.2);
+        transition: transform 400ms cubic-bezier(0.24, 1.12, 0.71, 0.98);
+
+        &.is-open {
+          transform: rotate(180deg) scale(1);
+          transition-delay: 300ms;
+        }
+      }
+    }
+  }
 }