scroll-snap-type doesn't work, How can I fix it?

Question

scroll-snap-type doesn't work, How can I fix it?

755 views Asked by Lee At 16 August 2021 at 03:31

It is scrolled down as it originally works, I mean, like there's no scroll-snap option. why?

html code below:

<body>
    <noscript>~~</noscript>
    <div id="background"></div>
    <header>
        <nav><a href="/"><img src="~~" alt="To Mainpage"></a></nav>
        <nav>
            <ul>
                <li><a href="/">~~</a></li>
                <li><a href="/">~~</a></li>
            </ul>
        </nav>
    </header>
    <main>
        <div id="container">
            <section id="first">
                <h1>~~</h1>
                <article>~~</article>
            </section>
            <section id="second"></section>
        </div>
    </main>
</body>

and CSS code below:

#container {
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
}

#container > section {
    height: 100vh;
    scroll-snap-align: start;
}

Original Q&A

There are 1 answers

**prettyInPink** · Accepted Answer · 2021-08-20 16:58:34

Make sure to give your parent container a height value, as shown in the example below.

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
#container {
    display: flex;
    overflow: auto;
    outline: 1px dashed lightgray;
    flex: none;
    width: 100%;
    height: 100vh;
    flex-flow: column nowrap;
    scroll-snap-type: y mandatory;
}

#container > section {
    width: 100%;
    height: 100%;
    scroll-snap-align: start;
    flex: none;
}

#first, #third {
  background: #ccc;
}

#second, #fourth {
  background: red;
}

<div id="container">
  <section id="first"></section>
  <section id="second"></section>
  <section id="third"></section>
  <section id="fourth"></section>
</div>

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scroll-snap-type doesn't work, How can I fix it?

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