使用HTML、CSS和JavaScript构建一个弹出计算器。我基本完成了设计方面的工作，但我无法让我的打开计算器按钮工作。我错过了什么来使这个工作？我假设一旦我找到了我出错的地方，我就可以在我的计算器的退出/关闭按钮上使用这个概念。
let calc = document.getElementById("calculator");
let overlay = document.getElementById("overlay");
let var1 = document.getElementById('var1');
let var2 = document.getElementById('var2');
function openCalc() {
calc.classlist.add(".calculator .active");
overlay.clastlist.add('active');
}* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Poppins', sans-serif;
}
.container {
width: 100%;
height: 100vh;
background-image: url("./bg.png");
display: flex;
align-items: center;
justify-content: center;
}
.btn {
padding: 10px 60px;
background: #fff;
border: 0;
outline: none;
cursor: pointer;
font-size: 22px;
font-weight: 500;
border-radius: 25px;
}
.calculator {
width: 500px;
background-color: #7ea2d4;
border-radius: 10px;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
text-align: center;
padding: 0 30px 30px;
border: 1px solid black;
max-width: 80%;
visibility: hidden;
transition: 400ms ease-in-out;
}
.calculator .active {
transform: translate(-50%, -50%) scale(1);
visibility: visible;
}
.calculator .header {
padding: 10px 15px;
display: flex;
justify-content: space-between;
align-items: center;
border-bottom: 1px solid black;
}
.calculator img {
width: 100px;
border-radius: 50%;
box-shadow: 0 2px 5px rgb(255, 255, 255);
}
.calculator .close-button {
cursor: pointer;
border: none;
outline: none;
background: none;
font-size: 1.5rem;
font-weight: bold;
color: red;
width: 30px;
height: 40px;
margin-bottom: 50px;
}
.calculator .close-button:hover {
cursor: pointer;
border-radius: 5px;
background-color: red;
color: white;
transition: 400ms ease-in-out;
}
.calc-body {
padding: 10px 15px;
}
.calc-body .operator {
margin-top: 15px;
border: 0;
outline: 0;
width: 40px;
height: 40px;
border-radius: 10px;
background: whitesmoke;
font-size: 20px;
color: black;
cursor: pointer;
margin: 10px;
}
.calc-body .display {
display: flex;
justify-content: flex-end;
margin: 20px 0;
}
#overlay {
position: fixed;
opacity: 0;
transition: 400ms ease-in-out;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: rgba(0, 0, 0, .5);
pointer-events: none;
}
#overlay.active {
opacity: 1;
pointer-events: all;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calculator</title>
</head>
<body>
<div class="container">
<button type="submit" class="btn" onclick="openCalc()">Start Calculator</button>
<div class="calculator" id="calculator">
<div class="header">
<img src="calc.png">
<h2>Your Calculator App!</h2>
<button type="button" class="close-button" id="closeCalc">×</button>
</div>
<div class="calc-body">
Enter Number 1: <input type="text" id="var1"><br> Enter Number 2: <input type="text" id="var2"><br>
<input type="button" value="+" class="operator" onclick="add()">
<input type="button" value="-" class="operator" onclick="sub()">
<input type="button" value="*" class="operator" onclick="multi()">
<input type="button" value="/" class="operator" onclick="divi()">
<input type="button" value="%" class="operator" onclick="modulo()">
</div>
<div class="result" id="popup">
<h2>The answer is...</h2>
<div class="display">
<input type="text" name="display">
</div>
</div>
</div>
</div>
<div id="overlay"></div>
<script>
</script>
</body>
</html>
2条答案
按热度按时间ldioqlga1#
你在原始代码中犯了一些错误，让我们一个接一个地检查一下：
1.要操作DOM元素类，应该使用
el.classList.add("a-class-name")而不是classlist1.在向元素添加新类名时，不需要在类名前包含点。因此，使用
classList.add("active")代替classList.add(".active")1.当一个元素有多个类名时，使用
.first-class-name.second-class-name在CSS中选择该元素，选择器之间没有任何空格。最后，我将
z-index添加到弹出窗口中，这样它就不会显示在覆盖元素下面。下面是代码的固定版本：
pdsfdshx2#
添加它的css和改变你的功能