我的＃abhimanyu，＃arjun，＃bheem和#eklavya div没有出现。现在，单位是百分比，但是如果我放像素，它可以工作，但不会响应。知道为什么它不出现吗？先感谢您！
更新：另一个问题是，在电话上，当我在文本框中键入内容时，所有内容都不用了。
这是我的代码：
function displaySignInError() {
var schoolName = document.getElementById('schoolNameBox').value.toLowerCase();
switch (schoolName) {
case 'new horizon gurukul':
window.location = "NHGLogin.php";
break;
default:
var schoolErrorMessage = document.getElementById('schoolErrorMessage');
schoolErrorMessage.innerHTML = "Please Enter a valid school name, still if invalid schoold does not exist.";
schoolErrorMessage.style.color = 'red';
}
}@import url('https://fonts.googleapis.com/css?family=Catamaran:100,200,300,400,500,600,700,800,900|Droid+Sans:400,700|Josefin+Sans:100,100i,300,300i,400,400i,600,600i,700,700i|Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i|Oxygen:300,400,700|Roboto:100,100i,300,300i,400,400i,500,500i,700,700i,900,900i|Ubuntu:300,300i,400,400i,500,500i,700,700i');
#abhimanyu {
z-index: -1;
background-color: green;
width: 50%;
float: left;
height: 47%;
}
#arjun {
z-index: -1;
background-color: orange;
width: 50%;
float: right;
height: 47%;
}
#bheem {
z-index: -1;
background-color: red;
width: 50%;
float: left;
height: 47%;
}
#eklavya {
z-index: -1;
background-color: purple;
width: 50%;
height: 47%;
}
#container {
width: 30em;
background-color: #eee;
height: 30em;
border-radius: 50%;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
transform: -webkit-translate(-50%, -50%);
transform: -ms-translate(-50%, -50%);
}
#wrapper {
width: 30rem;
height: 30rem;
border-radius: 50%;
}
#schoolSubmitButton {
margin-top: 35px;
text-align: center;
background-color: white;
border: 2px solid #fef;
height: 2em;
width: 10em;
}
#schoolName {
margin-bottom: 40px;
position: fixed;
top: 60%;
left: 50%;
transform: translate(-50%, -50%);
transform: -webkit-translate(-50%, -50%);
transform: -ms-translate(-50%, -50%);
text-align: center;
}
#schoolNameBox {
height: 2em;
border: none;
width: 26em;
margin-left: 0;
padding-left: 10px;
}
#schoolSubmitButton p {
position: relative;
top: 50%;
position: relative;
top: 30%;
left: 50%;
transform: translate(-50%, -70%);
transform: -webkit-translate(-50%, -70%);
transform: -ms-translate(-50%, -70%);
}
/*
::-webkit-input-placeholder {
padding-left: 10px;
}
:-moz-placeholder {
padding-left: 10px;
}
:-ms-input-placeholder {
padding-left: 10px;
}
*/
#schoolErrorMessage {
text-decoration: none;
position: relative;
top: 6em;
color: black;
width: 140%;
float: left;
font-size: 15px;
position: relative;
right: 20%;
}
#schoolNameDiv {
position: fixed;
top: 60%;
left: 50%;
transform: translate(-50%, -50%);
transform: -webkit-translate(-50%, -50%);
transform: -ms-translate(-50%, -50%);
text-align: center;
}
#main-heading {
text-align: center;
text-decoration: none;
font-size: 24px;
z-index: 1;
}
#schoolAvatar {
height: 9em;
width: 9em;
border-radius: 50%;
position: fixed;
top: 25%;
left: 50%;
transform: translate(-50%, -50%);
transform: -webkit-translate(-50%, -50%);
transform: -ms-translate(-50%, -50%);
}
.footerHR {
border-top: 1px solid grey;
position: absolute;
bottom: 20px;
margin-bottom: 20px;
}
@media screen and (max-width: 530px) {
#container {
width: 96%;
height: 80%;
border-radius: 5px;
margin-top: 15px;
}
#schoolNameBox {
width: 20em;
}
#main-heading {
font-size: 22px;
}
#main-heading h2 {
margin-top: 15px;
}
}<!DOCTYPE html>
<html>
<head>
<title>NHG</title>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<link type="text/css" rel="stylesheet" href="css/normalize.css"/>
<link type="text/css" rel="stylesheet" href="css/style.css"/>
<link type="text/css" rel="stylesheet" href="css/resposive.css"/>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
</head>
<body>
<div id="abhimanyu"></div>
<div id="arjun"></div>
<br>
<div id="bheem"></div>
<div id="eklavya"></div>
<header>
<div id="main-head">
<!-- REMEMBER TO STYLE THE HEADING AND SIGN UP LINK -->
<a href="#" id="main-heading"><h2>sKoolBook</h2></a>
</div>
</header>
<section>
<div id="container">
<div id="wrapper">
<img src="https://i.imgsafe.org/a40bbe047e.png" alt="avatar" id="schoolAvatar" align="middle">
<div id="schoolNameDiv">
<div id="schoolName">
<input type="text" name="schoolName" id="schoolNameBox" placeholder="Enter your School Name...">
<br>
<button type="submit" id="schoolSubmitButton" onclick="displaySignInError();">
<p>Next</p>
</button>
<br>
</div>
<br>
<p id="schoolErrorMessage">School Doesn't exist? Tell your principal about our website now!</p>
</div>
</div>
</div>
</section>
<br>
<footer>
<div class="footerHR">
</div>
</footer>
<script src="JS/script.js"></script>
</body>
</html>最佳答案
由于使用百分比，因此您需要定义父母的身高。
更好的方法是：
将您的HTML更改为：
<div class="show-this">
<div id="abhimanyu"></div>
<div id="arjun"></div>
<div id="bheem"></div>
<div id="eklavya"></div>
</div>
在你的CSS上。添加此代码：
.show-this {
height: 100vh;
width: 100vw;
}
或者你可以声明
body {
height: 100vh; // or something
}
.show-this {
width: 100vw;
height: 100vh; }
.show-this #abhimanyu {
height: 10%;
width: 80%;
background: red; }
.show-this #arjun {
height: 20%;
width: 90%;
background: yellow; }
.show-this #bheem {
height: 40%;
width: 50%;
background: green; }
.show-this #eklavya {
height: 20%;
width: 100%;
background: blue; }<div class="show-this">
<div id="abhimanyu"></div>
<div id="arjun"></div>
<div id="bheem"></div>
<div id="eklavya"></div>
</div>希望能帮助到你！干杯。
关于javascript - 我的div没有出现，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/40190073/