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Adding Classes

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About the <head>

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CSS

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HTML 

              
                <html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>FAQ</title>
        <meta name="description" content="">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <style>
            @import url('https://fonts.googleapis.com/css2?family=Anek+Odia:wght@300;400;600&family=Bad+Script&display=swap');
            </style>
    </head>
    <body>
        <div id='bannerLinks'>
            <a target='_blank'
                href='https://github.com/alleycaaat/'>
                AC on GitHub
            </a>
            <a target='_blank'
                href='https://codepen.io/alleycaaat'>
                AC on CodePen
            </a>
        </div>
        <main class="container">
            <h1>Frequently Asked Questions</h1>
            <article class="q" aria-expanded="false">
                <div class="title">
                    <h2>What’s the difference between a hippo and a zippo?</h2>
                    <button class="qb" aria-label="toggle answer">
                        <img
                            src="https://i.ibb.co/KKmX2q3/chevron.png"
                            alt="chevron">
                    </button>
                </div>
                <div class="answer">
                    <p>One is really heavy, the other is a little lighter.</p>
                </div>
            </article>

            <article class="q" aria-expanded="false">
                <div class="title">
                    <h2>Which country's capital has the fastest-growing
                        population?</h2>
                    <button class="qb" aria-label="toggle answer">
                        <img
                            src="https://i.ibb.co/KKmX2q3/chevron.png"
                            alt="chevron">
                    </button>
                </div>
                <div class="answer">
                    <p>Ireland. Every day it's Dublin.</p>
                </div>
            </article>

            <article class="q" aria-expanded="false">
                <div class="title">
                    <h2>What do you get when you mix alcohol and literature?</h2>
                    <button class="qb" aria-label="toggle answer">
                        <img
                            src="https://i.ibb.co/KKmX2q3/chevron.png"
                            alt="chevron">
                    </button>
                </div>
                <div class="answer">
                    <p>Tequila mockingbird</p>
                </div>
            </article>
            <script src="./index.js"></script>
        </main>

        <footer>
            <div class="credit">
                <p>Created by <a href="https://achulslander.com/"
                        target="_blank">AC Hulslander</a>
                </p>
                <p>
                    <a
                        href="https://blog.achulslander.com/how-to-make-an-accordion-faq-with-html-scss-and-js"
                        target="_blank">Learn how to make this accordion FAQ on
                        my blog</a>
                </p>
                <p class="smol">
                    <a target="_blank"
                        href="https://icons8.com/icon/100574/double-down">Double
                        Down</a> icon by <a target="_blank"
                        href="https://icons8.com">Icons8</a>
                </p>
            </div>
        </footer>
    </body>
</html>
!

CSS 

              
                $boxshadow: 0 14px 12px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
$purple: #732091;
//***********************
//*** this styling isn't included in the tutorial
//*** scroll down for the tutorial styles
//***********************
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: #FFF;
    font-family: 'Anek Odia', sans-serif;
}
h1,
h2 {
    text-align: center;
    color: $purple;
    font-family: 'Bad Script', cursive;
}
.credit {
    display: flex;
    flex-direction: column;
    margin-top: 20px;
    width: 70vw;
    padding: 7px 19px;
    border: 2px solid $purple;
    background-color: lavender;
    border-radius: 15px;
    box-shadow: $boxshadow;
    p {
        color: #000;
        font-weight: 400;
        text-align: center;
        line-height: 21px;
    }
    .smol {
      font-size: 13px;
    }
    a {
        cursor: pointer;
        text-decoration: none;
        color: $purple;
        padding: 1px 2px;
        border-radius: 3px;
        &:hover {
            text-decoration: underline;
        }
    }
}

//***********************
//*** tutorial styles start here
//***********************
div {
    display: flex;
    margin-left: auto;
    margin-right: auto;
    justify-content: center;
    align-items: center;
}
.container {
    flex-direction: column;
    width: 80vw;
    border-radius: 5px;
    padding: 15px;
    margin: 50px auto auto auto;
}
.q {
    width: 100%;
    flex-direction: column;
    background-color: lavender;
    color: $purple;
    border-radius: 5px;
    padding-top: 3px;
    margin: 5px 5px 17px 5px;
    font-size: 25px;
    font-weight: 600;
    box-shadow: $boxshadow;
    .title {
      width: 100%;
    }
    h2 {
        padding: 7px;
        font-size: 23px;
        margin: auto;
    }
}
button {
    cursor: pointer;
    background-color: rgba(255,255,255,0);
    border: 0px;
    border-radius: 7px;
    padding: 1px 7px;
    color: $purple;
    font-size: 25px;
    font-weight: 600;
    margin-right: 10px;
    text-align: center;
    transition: transform .5s ease-in-out; 
    img {
        height: 25px;
        width: auto;
    }
}
.answer {
    display: none;
    padding: 13px;
    background-color: lavender;
    font-weight: 300;
    font-size: 18px;
    border-radius: 5px;
}
.clicked {
    .answer {
        display: block;
  }
}
 .rotate {
    transform: rotate(180deg);
}

//***********************
//*** also not included in the tutorial
//***********************
@media screen and (min-width: 550px) {
    .credit {
      width: 50vw;
    }
}
@media screen and (max-width: 800px) {
   .q h2 {
    font-size: 18px;
  }
}
@media (hover: hover) {
    button:hover {
        transition: transform .5s ease-in-out;
        transform: scale(1.3);
    }
  .rotate {
    &:hover {
      transform: scale(1.3) rotate(180deg);
    }
  }
}

#bannerLinks {
    width: 220px;
    height: 220px;
    position: fixed;
    display: block;
    top: 0;
    left: 0;
    margin: 0;
    transform: rotate(-45deg);
    a {
        display: block;
        background: rgb(74, 0, 105);
        color: white;
        text-align: center;
        line-height: 21px;
        height: 21px;
        font-size: 15px;
        text-decoration: none;
        margin: 3px;
        font-family: Tahoma, Geneva, Verdana, sans-serif;
        &:nth-child(2) {
            background-color: #838383;
        }
        &:hover {
            text-transform: uppercase;
        }
    }
}
!

JS 

              
                const question=document.querySelectorAll('.q');

question.forEach(function (quest) {
  const btn=quest.querySelector('button');
  let arrow=quest.querySelector('.qb');
 
  btn.addEventListener('click', function() {

    quest.classList.toggle('clicked');
    arrow.classList.toggle('rotate');

    let ariaValue=quest.getAttribute('aria-expanded');
    ariaValue = (ariaValue === 'false') ? quest.setAttribute('aria-expanded', 'true') : quest.setAttribute('aria-expanded', 'false');
  });

});
!
999px

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