Question

您好我正在努力应对我使用CSS网格实施的挑战。

我唯一的问题是我需要最高的菜单，固定宽度为520px，固定位置可以在水平轴上的较小设备上滚动，请指教？

出于某种原因overflow-x：auto;在这种情况下似乎不起作用....

<!--html-->
<main>
    <div class="main-menu-container">
        <ul class="main-menu">
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items" >ALL</a></li>
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items" data-griditem="a">A</a></li>
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items" data-griditem="b">B</a></li>
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items"data-griditem="c">C</a></li>
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items" data-griditem="d">D</a></li>
            <li class="main-menu__item"><a href="#" class="main-menu__link js-display-grid-items" data-griditem="e">E</a></li>
        </ul>
    </div>
    <section class="main-grid">
        <article class="main-grid__item main-grid__item--type-a is-visible">A</article>
        <article class="main-grid__item main-grid__item--type-c is-visible">C</article>
        <article class="main-grid__item main-grid__item--type-b is-visible">B</article>
        <article class="main-grid__item main-grid__item--type-e is-visible">E</article>
        <article class="main-grid__item main-grid__item--type-b is-visible">B</article>
        <article class="main-grid__item main-grid__item--type-d is-visible">D</article>
        <article class="main-grid__item main-grid__item--type-a is-visible">A</article>
        <article class="main-grid__item main-grid__item--type-b is-visible">B</article>
        <article class="main-grid__item main-grid__item--type-c is-visible">C</article>
        <article class="main-grid__item main-grid__item--type-d is-visible">D</article>
        <article class="main-grid__item main-grid__item--type-a is-visible">A</article>
        <article class="main-grid__item main-grid__item--type-e is-visible">E</article>
    </section>
</main>
<script src="js/site.js" type="text/javascript" ></script>

CSS：

body {
padding: 0;
margin:0;
 }

main {
 max-width: 940px;
 margin: 0 auto;
 font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande',   'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
 position: relative;
 padding: 0 15px;
  box-sizing:border-box;

  }
.main-menu-container {
position: fixed;
width: 910px;
top:0;
float:left;
height: 40px;

 }
.main-menu {
 display: grid;
 list-style: none;
 grid-template-columns: repeat(6, 1fr);
grid-gap: 20px;
padding: 0;
overflow-x: auto;
margin:0;
padding: 1em 0;
background: #fff;
width: 100%;
height: 100%;


 }

.main-menu__link {
display: block;
text-align: center;
padding:0.4em;
background-color: #9A9B9E;
color: #fff;
text-decoration: none;

 }

https://codepen.io/angusgrant/pen/Xqzrry

Answer 1

在您的演示中，您将最顶层的菜单（.main-menu）设置为width: 910px。

.main-menu {
    display: grid;
    list-style: none;
    grid-template-columns: repeat(6, 1fr);
    grid-gap: 20px;
    padding: 0;
    position: static;
    overflow-x: auto;
    margin: 0;
    padding: 1em 0;
    background: #fff;
    width: 910px;     <----------
    height: 100%;
}

此菜单的父容器（.main-menu-container）也设置为width: 910px。

.main-menu-container {
    position: absolute;
    width: 910px;     <----------
    top: 0;
    left: 15px;
}

由于它们始终具有相同的宽度，因此无论屏幕大小如何，都不会出现溢出。

要允许溢出条件，请对父级进行此调整：

.main-menu-container {
    position: absolute;
    /* width: 910px; */
    top: 0;
    left: 15px;
    width: 100%;       /* new */
    overflow-x: auto;  /* new */
}

revised codepen

Answer 2

您需要使用类＆＃34; .main-menu-container＆＃34;更改元素。在响应中改变宽度，它不依赖于main，因为它是固定的。您还需要将宽度设置为＆＃34; li＆＃34;元素因为它们正在适应父宽度，并且只在较低宽度的空间中生成自动滚动。的问候，

css溢出自动与固定网格菜单不工作

2 个答案: