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HTML

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Adding Classes

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About the <head>

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <html>
  <body>
  <header class="page-head">

    <a href="#" class="page-head__home-link"> </a>

    <a href="#" class="page-head__toggle"><span>Menu</span></a>
    <nav class="site-nav">
      <ul class="site-nav__list">
        <li class="site-nav__item"><a href="#" class="site-nav__link">Link 1</a></li>
        <li class="site-nav__item"><a href="#" class="site-nav__link">Link 2</a></li>
        <li class="site-nav__item"><a href="#" class="site-nav__link">Services</a></li>
        <li class="site-nav__item"><a href="#" class="site-nav__link">Link 3</a></li>
        <li class="site-nav__item"><a href="#" class="site-nav__link">Link 4</a></li>
        <li class="site-nav__item"><a href="#" class="site-nav__link">Link 5</a></li>
      </ul>
    </nav>

  </header>
</body>
</html>
!

CSS 

              
                /**
 * Base.
 */

html {
  background: #fff;
  font-size: 62.5%;
}

body {
  background-color: #fff;
  font-size: 16px;
  height: 1500px;
  margin: 110px 0 0;
  padding: 0;
  text-rendering: optimizeLegibility;
}


/**
 * Header.
 */

.page-head__home-link {
  background: #93b833;
  float: left;
  height: 52px;
  line-height: 0;
  margin-left: 2.5%;
  position: relative;
  transition: fill .25s;
  width: 140px;
  z-index: 2000;
}

.page-head {
  background: #222;
  box-sizing: border-box;
  height: 110px;
  overflow: hidden;
  padding-top: 30px;
  position: absolute;
  top: 0;
  right: 0;
  transform: translateY(0) translateZ(0);
  transition: background .10s, height .20s, padding .10s, transform .25s;
  width: 100%;
  z-index: 2000;
  &.invisible {
    opacity: 0;
    transform: translateY(-100%) translateZ(0);
    transition: transform .25s;
  }
  &.detached {
    background: #f00;
    height: 70px;
    opacity: 1;
    padding-top: 10px;
    position: fixed;
  }
}


/**
 * Navigation.
 */

.show-nav {
  overflow: hidden;
}

.site-nav {
  background: transparent;
  display: block;
  height: 100%;
  overflow: hidden;
  position: fixed;
  top: 0;
  text-align: center;
  transform: translate3d(0, 0, 0);
  transition: background .75s ease;
  user-select: none;
  visibility: hidden;
  width: 100%;
  z-index: -1;
  .show-nav & {
    background: rgba(#93b833, .98);
    overflow-y: auto;
    visibility: visible;
    z-index: 1000;
  }
  .hide-nav & {
    background: transparent;
    height: 100%;
    visibility: visible;
    width: 100%;
    z-index: 1000;
  }
}

.site-nav__list {
  margin: 0;
  padding: 0;
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translateY(-50%);
  width: 100%;
}

.site-nav__item {
  margin: 0;
  opacity: 0;
  transform: translateY(-100px);
  transition: all .5s 0s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  .show-nav & {
    opacity: 1;
    transform: translateY(0);
    transition-delay: .25s;
    transition-duration: 1s;
  }
}

.site-nav__link {
  background: transparent;
  color: #fff;
  display: block;
  font-size: 40px;
  line-height: 40px;
  font-style: italic;
  font-weight: 600;
  padding: 10px 0;
  transition: none;
  &:visited {
    background: transparent;
    color: #fff;
  }
  &:hover,
  &:focus {
    background: #fff;
    color: #93b833;
  }
}


/**
 * Toggle.
 */

.page-head__toggle {
  cursor: pointer;
  display: block;
  height: 55px;
  float: right;
  position: relative;
  right: 2.5%;
  text-indent: -9999px;
  transition: all .25s ease-in;
  width: 55px;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-touch-callout: none;
  user-select: none;
  z-index: 9999999999999;
  &:focus {
    outline: none;
  }
  span {
    background: #93b833;
    display: block;
    height: 3px;
    position: absolute;
    top: 26px;
    right: 10px;
    left: 10px;
    &:before,
    &:after {
      background: #93b833;
      content: "";
      display: block;
      height: 3px;
      position: absolute;
      top: -8px;
      left: 0;
      width: 100%;
    }
    &:after {
      top: auto;
      bottom: -8px;
    }
    .show-nav & {
      background: #fff;
      &:before,
      &:after {
        background: #fff;
      }
    }
  }
}

.page-head__toggle span {
  transition: background 0s .25s;
}

.page-head__toggle span:before,
.page-head__toggle span:after {
  transition-duration: .25s, .25s;
  transition-delay: .25s, 0s;
}

.page-head__toggle span:before {
  transition-property: top, transform;
}

.page-head__toggle span:after {
  transition-property: bottom, transform;
}


/* active state, i.e. menu open */

.show-nav {
  .page-head__toggle span {
    background: none !important;
  }
  .page-head__toggle span:before {
    top: 0;
    transform: rotate(45deg);
  }
  .page-head__toggle span:after {
    bottom: 0;
    transform: rotate(-45deg);
  }
  .page-head__toggle span:before,
  .page-head__toggle span:after {
    transition-delay: 0s, .25s;
  }
}
!

JS 

              
                /* ==========================================================================
   #SHOW/HIDE HEADER
   ========================================================================== */

$(function() {

  var previousScroll = 0, // previous scroll position
    menuOffset = 70, // height of menu (once scroll passed it, menu is hidden)
    detachPoint = 220, // point of detach (after scroll passed it, menu is fixed)
    hideShowOffset = 5, // scrolling value after which triggers hide/show menu
    header = $('.page-head');

  $(window).scroll(function() {

    if (header.hasClass('expanded')) return;

    var currentScroll = $(this).scrollTop(),
      scrollDifference = Math.abs(currentScroll - previousScroll);

    // if scrolled past menu
    if (currentScroll > menuOffset) {
      // if scrolled past detach point add class to fix menu
      if (currentScroll > detachPoint) {
        var value = parseInt(header.css('transform').split(',')[5]);
        console.log(value);
        if (!header.hasClass('transitioning') && !header.hasClass('detached') && value != -110) {
          header.addClass('transitioning').one('transitionend', function() {
            console.log('transitionend');
            header.removeClass('transitioning');
            if (currentScroll > detachPoint) header.addClass('detached');
          });
        } else if (!header.hasClass('transitioning') && !header.hasClass('detached')) {
          header.addClass('detached');
        }
      }

      // if scrolling faster than hideShowOffset hide/show menu
      if (scrollDifference >= hideShowOffset) {
        if (currentScroll > previousScroll) {
          // scrolling down; hide menu
          if (!header.hasClass('invisible'))
            header.addClass('invisible');
        } else {
          // scrolling up; show menu
          if (header.hasClass('invisible'))
            header.removeClass('invisible');
        }
      }
    } 
    // only remove “detached” class if user is at the top of document (menu jump fix)
    if (!currentScroll) {
        header.removeClass('detached');
      }
    
    // If user is at the bottom of document show menu.
    if ($(window).height() + currentScroll == $(document).height()) {
      header.removeClass('invisible');
    }

    // Replace previous scroll position with new one.
    previousScroll = currentScroll;
  });
});

/* ==========================================================================
   #SHOW/HIDE NAVIGATION
   ========================================================================== */

/* 
 * Creates classes to enable responsive navigation.
 */

// Wait for the DOM to be ready (all elements printed on page regardless if 
// loaded or not).
$(function() {

  // Bind a click event to anything with the class "toggle-nav".
  $('.page-head__toggle').click(function() {
    if ($('body').hasClass('show-nav')) {
      $('body').removeClass('show-nav').addClass('hide-nav');

      setTimeout(function() {
        $('body').removeClass('hide-nav');
      }, 500);

    } else {
      $('body').removeClass('hide-nav').addClass('show-nav');
    }
    // Deactivate the default behavior of going to the next page on click.
    return false;
  });
});
!
999px

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