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HTML

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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.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

About JavaScript Preprocessors

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

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Babel includes JSX processing.

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Packages

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HTML 

              
                #wrapper
  nav#menu.menu
    ul.row-centered
      li.link-home
        a(href="#section-1") Section 1
      li.link-empresa
        a(href="#section-2") Section 2
      li.link-tecnologias
        a(href="#section-3") Section 3
      li.link-cases
        a(href="#section-4") Section 4
      li.link-contato
        a(href="#section-5") Section 5
  
  section#section-1
    h2 Title Section 1
  section#section-2
    h2 Title Section 2
  section#section-3
    h2 Title Section 3
  section#section-4
    h2 Title Section 4
  section#section-5
    h2 Title Section 5
!

CSS 

              
                #wrapper
  padding-top 90px
  
  section
    margin 600px 200px
    
   h2
     font-size 30px

  #menu
      width 100%
      background-color #2a2a2a
      border-top 4px solid #ff6600
      z-index 990
      display block

    #menu ul.row-centered
      width 100%
      text-align center
      padding 0

    #menu ul li
      padding 23px
      display inline-block
      col(3/6)
      margin 0
      border-left 2px solid #000
      cursor pointer
      &:hover a
        color #ff6600

    .icon-play
      col(1/3)
      width 12% !important
      padding 0 !important
      border-left 0 !important

    .icon-play a
      sprite($icon_playlearn)
      display block
      margin: 0 auto
      opacity 0.8
      &:hover
        opacity 1

    #menu ul li a
      text-transform uppercase
      color #fff
      font-size 18px
      font-family 'Hind Guntur', sans-serif
      font-weight 400
      &:hover
        color #ff6600
      +below(1157px)
        font-size 14px


    .fixar
      position fixed !important
      top 0 !important
      left 0 !important
!

JS 

              
                $(document).ready(function() {


var offset = $('#menu').offset().top;
	var $meuMenu = $('#menu');
	$(document).on('scroll', function () {
	    if (offset <= $(window).scrollTop()) {
	        $meuMenu.addClass('fixar');
	    } else {
	        $meuMenu.removeClass('fixar');
	    }
	});

$(function(){

		var wrapper = $("#wrapper"),
    $menu = $("#menu");

		$menu.on("click","li", function(){
			var $this = $(this),
					href = $(this).find("a").attr("href"),
		      topY = $(href).offset().top,
					extraOffset = $menu.hasClass('fixar') ? 75 : 0;

		    TweenLite.to(window, 2, { scrollTo: { y: topY - extraOffset, x: 0 }, ease: Cubic.easeIn });

		  return false;
		});

	});
});
!
999px

Console