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HTML

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Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
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.

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

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Babel includes JSX processing.

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HTML 

              
                <body>
  <!-- header -->
  <header class="header">
    <h1 class="site-title"><a href="./">クリ★スタ</a></h1><!-- ①サイトタイトル -->
    <div class="nav-wrapper">
      <!-- ②ナビゲーションメニュー -->
      <nav class="header-nav">
        <ul class="nav-list">
          <li class="nav-item"><a href="https://crestadesign.org/">About</a></li>
          <li class="nav-item"><a href="https://crestadesign.org/">News</a></li>
          <li class="nav-item"><a href="https://crestadesign.org/">Access</a></li>
        </ul>
      </nav>
    </div>
    <button class="burger-btn">
      <!-- ③ハンバーガーボタン -->
      <span class="bar bar_top"></span>
      <span class="bar bar_mid"></span>
      <span class="bar bar_bottom"></span>
    </button>
  </header>
  <!-- //header -->

  <main>
    <!-- fv -->
    <div class="fv">
      <p class="main-copy">Cresta.Design</p>
    </div>
    <!-- //fv -->
    <!-- about -->
    <section class="section-wrapper" id="about">
      <h2 class="section-title">About</h2>
      <h3 class="about-title">ミニマルで<br>洗練されたデザインを。</h3>
      <p class="text_about">
        近年、ミニマルなデザインが流行しています。そこで弊社では、クライアント企業様新規サービス等の課題に対してミニマルで洗練されたデザインを実現させることで解決のサポートを致します。もちろん全てのサービスにおいてミニマルなデザインが課題解決になるわけではないので、課題や今後のサービスの展開等しっかりとヒアリングを行なった上でご提案させて頂きます。
      </p>
    </section>
    <!-- //about -->
  </main>

  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
  <script src="./js/script.js"></script>
</body>
!

CSS 

              
                /**
 * YUI 3.5.0 - reset.css (http://developer.yahoo.com/yui/3/cssreset/)
 * http://cssreset.com
 * Copyright 2012 Yahoo! Inc. All rights reserved.
 * http://yuilibrary.com/license/
 */
/*
	TODO will need to remove settings on HTML since we can't namespace it.
	TODO with the prefix, should I group by selector or property for weight savings?
*/
html {
	background: #fff;
	color: #000;
}
/*
	TODO remove settings on BODY since we can't namespace it.
*/
/*
	TODO test putting a class on HEAD.
		- Fails on FF.
*/
body , div , dl , dt , dd , ul , ol , li , h1 , h2 , h3 , h4 , h5 , h6 , pre , code , form , fieldset , legend , input , textarea , p , blockquote , th , td {
	margin: 0;
	padding: 0;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}
fieldset , img {
	border: 0;
}
/*
	TODO think about hanlding inheritence differently, maybe letting IE6 fail a bit...
*/
address , caption , cite , code , dfn , em , strong , th , var {
	font-style: normal;
	font-weight: normal;
}

ol , ul {
	list-style: none;
}

caption , th {
	text-align: left;
}
h1 , h2 , h3 , h4 , h5 , h6 {
	font-size: 100%;
	font-weight: normal;
}
q:before , q:after {
	content: "";
}
abbr , acronym {
	border: 0;
	font-variant: normal;
}
/* to preserve line-height and selector appearance */
sup {
	vertical-align: text-top;
}
sub {
	vertical-align: text-bottom;
}
input , textarea , select {
	font-family: inherit;
	font-size: inherit;
	font-weight: inherit;
}
/*to enable resizing for IE*/
input , textarea , select {
	font-size: 100%;
}
/*because legend doesn't inherit in IE */
legend {
	color: #000;
}
/* YUI CSS Detection Stamp */
#yui3-css-stamp.cssreset {
	display: none;
}

/* style.css */

/* -------------------- */
/* base
/* -------------------- */
body {
	font-family: "Roboto", "Noto Sans JP", sans-serif;
}
li {
	list-style: none;
}
a {
	color: #fff;
	text-decoration: none;
}
img {
	vertical-align: bottom;
	width: 100%;
}



/* -------------------- */
/* header
/* -------------------- */
.header {
	align-items: center;
	background-color: #1b1310;
	border-bottom: 1px solid #fff;
	color: #fff;
	display: flex;
	height: 74px;
	justify-content: space-between;
	padding: 0 120px;
}
.nav-list {
	/* navの横並び */
	display: flex;
}
.nav-item {
	/* メニューの右側に余白 */
	margin-right: 55px;
}

.burger-btn {
	display: none;
}

/* ------------------ */
/* fv
/* ------------------ */
.fv {
	align-items: center;
	background-color: #141414;
	background-image: url(../img/fv-bgi@2x.jpg);
	background-position: center;
	background-size: cover;
	display: flex;
	flex-direction: column;
	height: 90vh;
	justify-content: center;
}
.main-copy {
	border: 2px solid #fff;
	color: #fff;
	font-size: 50px;
	font-weight: bold;
	padding: 34px 42px;
}

/* ------------------ */
/* about
/* ------------------ */
.section-title {
	font-size: 36px;
	font-weight: bold;
	letter-spacing: .05em;
	margin-bottom: 70px;
	text-align: center;
}
h3 {
	font-size: 2.4rem;
	font-weight: bold;
	letter-spacing: .1em;
	line-height: 2;
	margin-bottom: 40px;
}
.section-wrapper {
	padding: 100px 10% 50px;
}

@media screen and (max-width:768px) {
  /* ----------------------- */
	/* base_sp
  /* ----------------------- */
  /* デフォルトのbuttonスタイルをリセット */
	button {
		-webkit-appearance: none;
		-moz-appearance: none;
		appearance: none;
		background: transparent;
		border: 0;
		border-radius: 0;
		color: inherit;
		cursor: pointer;
		font: inherit;
		margin: 0;
		outline: none;
		padding: 0;
		vertical-align: middle;
	}
  
  /* ------------------ */
	/* humberger-menu */
	/* ------------------ */
	.header {
		padding: 0 5%;
	}
    
/* 以下、ハンバーガーボタン */
	.burger-btn {
		display: block;
		height: 39px;
		position: relative;
		width: 39px;
		z-index: 3;
    /* codepenの挙動のため */
		background-color: transparent;
		border: none;
	}
  
	.bar {
		background-color: #fff;
		display: block;
		height: 1px;
		left: 50%;
		position: absolute;
		transform: translateX(-50%);
		width: 20px;
	}
	.bar_top {
		top: 10px;
	}
	.bar_mid {
		top: 50%;
		transform: translate(-50%,-50%);
	}
	.bar_bottom {
		bottom: 10px;
	}
	.burger-btn.close .bar_top {
		transform: translate(-50%,10px) rotate(45deg);
		transition: transform .3s;
	}
	.burger-btn.close .bar_mid {
		opacity: 0;
		transition: opacity .3s;
	}
	.burger-btn.close .bar_bottom {
		transform: translate(-50%,-8px) rotate(-45deg);
		transition: transform .3s;
	}
  /* スクロール制御 */
  .noscroll{
    overflow: hidden;
  }
  
  /* 以下、ハンバーガーメニュー */
	.nav-wrapper {
    visibility: hidden;
		height: 100vh;
		left: 0;
		position: fixed;
		top: 0;
		width: 100vw;
    opacity: 0;
    transition: opacity .5s;
		z-index: 2;/*キービジュアルと.btn_triggerとの重なりの前後関係を調整*/
	}
  
  .header-nav {
		background-color: #1b1310;
		height: 100%;
		width: 100%;
		z-index: 2;
	}
	.nav-list {
		display: block;
		left: 50%;
		position: absolute;
		text-align: center;
		top: 50%;
		transform: translate(-50%,-50%);
	}
	.nav-item {
		margin-bottom: 40px;
		margin-right: 0;
	}
  
  /* メニューオープン時 */
	.nav-wrapper.fade {
		opacity: 1;
		visibility: visible;
	}
  
	/* ------------------ */
	/* fv */
	/* ------------------ */
	.main-copy {
		font-size: 30px;
	}

	/* ------------------ */
	/* about */
	/* ------------------ */
	h3 {
		font-size: 20px;
		margin-bottom: 30px;
	}
	.section-wrapper {
		padding: 100px 5% 50px;
	}
}
!

JS 

              
                
$('.burger-btn').on('click',function(){//.btn_triggerをクリックすると
  $('.burger-btn').toggleClass('close');//.btn_triggerにcloseクラスを付与(ボタンのアニメーション)
  $('.nav-wrapper').toggleClass('fade');//.nav-wrapperに
  $('body').toggleClass('noscroll');//bodyにnoscrollクラスを付与(スクロールを固定)
 });
!
999px

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