Header Açılır Menü Yapımı

Css Kodları

@import url(https://fonts.googleapis.com/css?family=Work+Sans:300);

* {
  margin: 0;
  padding: 0;
}
*::after, *::before {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
html, body {
  height: 100%;
}
body {
  font-family: 'Work Sans', sans-serif;
  background: #222;
}
.header {
  text-align: right;
  padding: 20px 80px;
  position: relative;
}
.hamburger {
  width: 40px;
  height: 28px;
  position: relative;
  cursor: pointer;
  display: inline-block;
  z-index: 100;
}
.hamburger span {
  background: #fff;
  display: block;
  position: absolute;
  height: 2px;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: all .25s cubic-bezier(0.22, 0.61, 0.36, 1);
  -moz-transition: all .25s cubic-bezier(0.22, 0.61, 0.36, 1);
  -o-transition: all .25s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition: all .25s cubic-bezier(0.22, 0.61, 0.36, 1);
  opacity: 1;
  width: 100%;
  left: 0;
}
.hamburger span:nth-child(1) {
  top: 0px;
}
.hamburger span:nth-child(2) {
  top: 12px;
}
.hamburger span:nth-child(3) {
  top: 24px;
}
.hamburger.open span:nth-child(1) {
  top: 12px;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  left: -60px;
}
.hamburger.open span:nth-child(3) {
  top: 12px;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
}
.menu-overlay {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: #f26522;
  opacity: 0;
  visibility: visible;
  z-index: 99;
  text-align: center;
  display: table;
  -webkit-transition: visibility 0.5s ease, opacity 1s ease;
  -moz-transition: visibility 0.5s ease, opacity 1s ease;
  -o-transition: visibility 0.5s ease, opacity 1s ease;
  transition: visibility 0.5s ease, opacity 1s ease;
}
.menu-overlay.open {
  opacity: 1;
  visibility: visible;
}
.nav {
  display: table-cell;
  vertical-align: middle;
}
.nav li {
  margin: 20px 0;
  -moz-transform: translateY(-40px);
  -webkit-transform: translateY(-40px);
  transform: translateY(-40px);
  opacity: 0;
  -webkit-transition: all 0.4s ease;
  -moz-transition: all 0.4s ease;
  transition: all 0.4s ease;
}
.open .nav li {
  -moz-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
  opacity: 1;
}
.open .nav li:nth-child(1) {
  -webkit-transition-delay: 100ms;
  transition-delay: 100ms;
}
.open .nav li:nth-child(2) {
  -webkit-transition-delay: 200ms;
  transition-delay: 200ms;
}
.open .nav li:nth-child(3) {
  -webkit-transition-delay: 300ms;
  transition-delay: 300ms;
}
.open .nav li:nth-child(4) {
  -webkit-transition-delay: 400ms;
  transition-delay: 400ms;
}
.open .nav li:nth-child(5) {
  -webkit-transition-delay: 500ms;
  transition-delay: 500ms;
}
.open .nav li:nth-child(6) {
  -webkit-transition-delay: 600ms;
  transition-delay: 600ms;
}
.open .nav li:nth-child(7) {
  -webkit-transition-delay: 700ms;
  transition-delay: 700ms;
}
.open .nav li:nth-child(8) {
  -webkit-transition-delay: 800ms;
  transition-delay: 800ms;
}
.nav a {
  display: block;
  color: #fff;
  font-size: 32px;
  text-decoration: none;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
}
.nav a:hover{
  opacity: 0.6;
}

Html Kodları

<div class="header">
      <div class="hamburger1 hamburger">
        <span></span>
        <span></span>
        <span></span>
      </div>
      <div class="menu-overlay">
        <ul class="nav">
          <li><a href="#">Ana Sayfa</a></li>
          <li><a href="#">Hakkımızda</a></li>
          <li><a href="#">Projeler</a></li>
          <li><a href="#">İletişim</a></li>
        </ul>
      </div>
    </div>

Java Kodları

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js'/>

<script type="text/javascript">
//<![CDATA[
$(document).ready(function(){
    $('.hamburger').click(function(){
        $(this).toggleClass('open');
        $('.menu-overlay').toggleClass('open');
     });
});
//]]>
</script>

Demosuna Bakabilirsiniz.

 https://codepen.io/bloggeriz/pen/JjYXpjR