【发布时间】：2022-01-15 20:26:33
【问题描述】：
我在做什么
我正在使用 HTML、CSS 和 JavaScript 创建一个 picture framing 计算器。
计算器解决了什么问题
以下是用户输入示例：
Frame Width (wf): 16
Frame Height (hf): 20
Picture Width (wp): 11
Picture Height (hp): 17
Mat Overlap (o): .25
我的计算器的方程式是：
-
Width=(1 / 2) * (hf - hp + o)=1.625相当于<div id="width"> -
Height=(1 / 2) * (wf - wp + o)=2.625相当于<div id="height">
代码
* {
margin: 0;
padding: 0;
font-family: 'Lato', sans-serif;
}
/*Fieldset and legend */
fieldset {
margin: 2em 0;
padding: 1em 2em;
border: solid 1px #ccc;
border-radius: 6px;
min-width: P 200px;
}
legend {
font-size: 1.25em;
padding: 0 .25em;
color: #999;
}
/* Labels */
label {
display: block;
margin-top: 1em;
}
.checks label {
margin-top: 0;
}
label:first-of-type {
margin-top: 0;
}
/* Inputs and textarea */
input {
padding: .5em;
border: solid 1px #999;
background-color: #D3D3D3
}
input[type="number"],
input[type="text"] {
width: 15em;
background-color: #D3D3D3
}
textarea {
min-height: 8em;
min-width: 100%;
padding: .5em;
border: solid 1px #999;
background-color: #D3D3D3
}
/* radio buttons and checkboxes */
.checks {
margin-bottom: 1em;
}
.checks p {
margin-bottom: 0;
}
input[type="checkbox"]+label,
input[type="radio"]+label {
display: inline-block;
padding-top: 0;
margin-top: 0;
}
input[type="radio"] {
margin-left: 1.5em;
margin-right: 0;
}
input[type="radio"]:first-of-type {
margin-left: 0;
}
#dvemail {
display: none;
}
#chkYes:checked~#dvemail {
display: block;
}
/* Submit Button */
input[type="button"] {
padding: .5em 1em;
border-radius: 6px;
background-color: #333;
color: #fff;
font-family: 'Lato', sans-serif;
font-size: .8em;
}
/* Large screen rules */
@media screen and (min-width: 430px) {
legend {
font-size: 1.75em;
}
fieldset {
width: 40%;
min-width: 320px;
margin: auto;
}
.checks label {
display: inline-block;
padding-top: .5em;
margin-top: 0;
margin-right: .5em;
}
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name "viewport" content="width=device-width,
initial-scale=1.0">
<title>I Was Framed - Calculator</title>
<link href="https://fonts.googleapis.com/css?family=Lato:300,400,400i,700,900&display=swap" rel="stylesheet">
<link rel="stylesheet" href="style.css">
</head>
<body>
<section>
<form id="frm1" action="form_action.asp">
<fieldset>
<legend>
I Was Framed Calculator
</legend>
<label for="frameWidth">Frame Width:</label><input type="number" step="any" min="0" name="wf" id="wf">
<label for="frameHeight">Frame Height:</label><input type="number" step="any" min="0" name="hf" id="hf"><br>
<label for="pictureWidth">Picture Width:</label><input type="number" step="any" min="0" name="wp" id="wp">
<label for="pictureHeight">Picture Height:</label><input type="number" step="any" min="0" name="hp" id="hp"><br>
<label for="matOverlap">Mat Overlap:</label><input type="number" min="0" step="any" name="o" id="o"><br>
<input type="button" onclick="calc()" value="Calculate" name="cmdCalc" />
</fieldset>
</form>
</section>
<script>
function calc()
{
var wf = document.getElementById('wf').value
var hf = document.getElementById('hf').value
var wp = document.getElementById('wp').value
var hp = document.getElementById('hp').value
var o = document.getElementById('o').value
var width = (1 / 2) * (hf - hp + o);
var height = (1 / 2) * (wf - wp + o);
document.getElementById('width').innerHTML = width;
document.getElementById('height').innerHTML = height;
}
</script>
<center>
<div style="width:300px;height:300px;border:1px solid #000;">
<center>
<div id="width"><div id="height"></div></div>
</center>
</div>
</center>
</body>
</html>问题和我的尝试
我的代码能够在生成的矩形上显示Width，即<div id="width">。但是，我无法显示Height，即<div id="height">。这是有问题的代码部分：
<center><div style="width:300px;height:400px;border:1px solid #000;"><center><div id="width"><div id="height"></div></center></div></center>
我的问题
- 如何显示
<div id="height">，如下图所示：placement of height？图中1.625是<div id="width">的计算和正确放置。
【问题讨论】：
-
关于你的
<img>，什么是“1.625”，它从何而来？是边距、内边距还是别的什么......？ -
@DavidThomas “1.625”是与画框有关的计算。这是它的完整描述：math.stackexchange.com/questions/4343498/…
标签： javascript html jquery css