HTML内容填充页面，但可以滚动到其他内容

Question

我正在努力做到这一点，以便在加载到网站的主页上时，您只能看到其底部的导航，标题，图像和一些文本，不应显示红色div元素，并且您必须向下滚动才能看到它。在仍然使页面响应的同时该如何做？

h2 {
  font-family: 'Raleway', sans-serif;
  font-weight: 400;
}

h3 {
  font-family: 'Raleway', sans-serif;
  font-weight: 300;
}

p {
  font-family: 'Raleway', sans-serif;
  font-weight: 200;
}

body {}

img {
  height: 10%;
  width: 50%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

ul {
  list-style-type: none;
  margin: 10px;
  padding: 0px;
  overflow: hidden;
}

li {
  float: left;
  padding: 1%;
  font-family: 'Raleway', sans-serif;
}

li a {
  text-decoration: none;
  color: black;
}

li a.active {
  text-decoration: underline;
}

.nav {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  background-color: white;
}


/*text that needs to stay on home page under image*/

.text {
  text-align: center;
}


/*what needs to be hidden*/

.container1 {
  padding: 40px;
  background-color: red;
  text-align: center;
}


/*Area with title and image*/

.header {
  padding: 30px;
  font-size: 40px;
  text-align: center;
  grid-area: banner;
  width: 100%;
  color: black;
}

@media screen and (max-width: 800px) {
  .leftcolumn,
  .rightcolumn {
    width: 100%;
    padding: 0;
  }
}

<link href="https://fonts.googleapis.com/css?family=Raleway:200,400" rel="stylesheet">

<div class="nav">
  <ul>
    <li><a href="index.html" class="active">Learning Journal</a></li>
    <li>Tutorial</li>
    <li>Contact Me</li>
  </ul>
</div>
<div class="header">
  <h2> CI435 - INTRODUCTION TO WEB DEVELEPMONT</h2>
  <img src="images/htmlcode.jpg" alt="">
</div>
<div class="text">
  <h2>PLACEHOLDER</h2>
</div>
<div class="container1">
  <h3>Weeek x</h3>
  <p> PLACEHOLDER</p>
</div>

<div class="container1">
  <h3>Weeek x</h3>
  <p> PLACEHOLDER</p>
</div>
<div class="container1">
  <h3>Weeek x</h3>
  <p> PLACEHOLDER</p>
</div>

Answer 1

您正在寻找height: 100vh（视口单位）。

您还需要将.header和.text占位符包装到父元素中，以便控制高度。我将其包装到<main class="full-height"元素中并设置了.full-height { height: 100vh; }

类的样式

现在无论设备有多大/小，用户都必须滚动到红色。

h2 {
    font-family: 'Raleway', sans-serif;
    font-weight: 400;
}

h3 {
    font-family: 'Raleway', sans-serif;
    font-weight: 300;
}

p {
    font-family: 'Raleway', sans-serif;
    font-weight: 200;
}

body {}

img {

    height: 10%;
    width: 50%;
    display: block;
    margin-left: auto;
    margin-right: auto;


}

ul {
    list-style-type: none;
    margin: 10px;
    padding: 0px;
    overflow: hidden;

}

li {
    float: left;
    padding: 1%;
    font-family: 'Raleway', sans-serif;
}

li a {

    text-decoration: none;
    color: black;

}

li a.active {
    text-decoration: underline;
}

.nav {

    position: -webkit-sticky;
    position: sticky;
    top: 0;
    background-color: white;
}

.text {

    text-align: center;
}

.container1 {

    padding: 40px;
    background-color: brown;
    text-align: center;
}


.header {
    padding: 30px;
    font-size: 40px;
    text-align: center;
    grid-area: banner;
    width: 100%;

    color: black;
}

.full-height { height: 100vh; }


@media screen and (max-width: 800px) {

    .leftcolumn,
    .rightcolumn {
        width: 100%;
        padding: 0;
    }
}

    <div class="nav">
        <ul>
            <li><a href="index.html" class="active">Learning Journal</a></li>
            <li>Tutorial</li>
            <li>Contact Me</li>
        </ul>
    </div>

	<main class="full-height">
		<div class="header">
			<h2> CI435 - INTRODUCTION TO WEB DEVELEPMONT</h2>
			<img src="images/htmlcode.jpg" alt="">
		</div>

		<div class="text">
			<h2>PLACEHOLDER</h2>
		</div>
	</main>

    <div class="container1">
        <h3>Weeek x</h3>
        <p> PLACEHOLDER</p>
    </div>

    <div class="container1">
        <h3>Weeek x</h3>
        <p> PLACEHOLDER</p>
    </div>
    <div class="container1">
        <h3>Weeek x</h3>
        <p> PLACEHOLDER</p>
    </div>