
本文旨在解决在 CSS 中如何对齐单选框和复选框的文本,以及如何使表单占据整个页面并添加滚动条的问题。通过移除不必要的居中样式,并利用 CSS 属性调整页面高度,可以实现预期的布局效果。本文提供了详细的 CSS 代码示例和 HTML结构,帮助开发者轻松实现目标。
在默认情况下,单选框和复选框的文本可能会因为继承了父元素的 text-align: center; 样式而居中显示。为了将这些文本对齐到左侧,需要移除或覆盖这些居中样式。
解决方案:
示例代码:
立即学习“前端免费学习笔记(深入)”;
HTML:
<div>
<label>
<input type="radio" name="referal" class="inline" value="definitely" /> Definitely
</label><br/>
<label>
<input type="radio" name="referal" class="inline" value="maybe" /> Maybe
</label><br/>
<label>
<input type="radio" name="referal" class="inline" value="definitelyNot"/> Definitely not
</label><br/>
</div>
<div>
<p>What would you like to see improved? <span class="clue">(Check all that apply)</span></p>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="frontend"/> Front-End skills<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="backend" /> Back-End skills<br/>
</label>
</label>
</div>CSS:
.text-center {
text-align: center;
margin: auto;
}
.form-group {
margin: auto; /* Removed text-align: center; */
}
.clue {
text-align: center;
}
.input-checkboxes {
text-align: center;
}
.inline {
margin-right: 6px;
text-align: left; /* Add this line */
}解释:
要使表单占据整个页面并添加滚动条,需要确保 body 元素的高度为 100%,并且表单内容超出屏幕高度时能够滚动。
解决方案:
示例代码:
立即学习“前端免费学习笔记(深入)”;
CSS:
body {
background: url(images/tech2.webp);
background-size: 100%;
min-height: 100vh; /* Changed height to min-height and added vh unit */
margin: 0; /* Reset default margin */
padding: 0;
}
.container {
grid-column: 5 / 9;
max-width: 600px;
margin: 20px auto 20px;
padding: 30px;
border: 1px solid black;
border-radius: 8px;
background-color: rgba(255, 255, 255, 0.763);
}解释:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Survey Form</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<header class="header">
<h1 id="title" class="text-center">Survey Form</h1>
<p id="description" class="description text-center">Thank you for taking the time to help me improve my skills as a developer</p>
</header>
<div class="container">
<form id="survey-form">
<div class="form-group">
<label id="name-label" for="name">Name:
<input required id="name" type="text" placeholder="Name">
</label><br/>
</div>
<div class="form-group">
<label id="email-label" for="email">Email:
<input required id="email" type="email" placeholder="E-mail">
</label><br/>
</div>
<div class="form-group">
<label id="number-label" for="number">Age:
<input required id="number" min="13" max="120" type="number" placeholder="Age">
</label><br/>
</div>
<div class="form-group">
<p>Which option best describes your current role?</p>
<select id="dropdown" name="role" class="form-control" required>
<option disabled selected>Select current role</option>
<option value="student">Student</option>
<option value="teacher">Teacher</option>
<option value="job">Full time job coding</option>
<option value="preferNo">Prefer not to say</option>
<option value="other">Other</option>
</select><br/>
</div>
<div>
<p class="text-center">Based on my portfolio/resume, would you say that I am job ready?</p>
<label>
<input type="radio" name="referal" class="inline" value="definitely" /> Definitely
</label><br/>
<label>
<input type="radio" name="referal" class="inline" value="maybe" /> Maybe
</label><br/>
<label>
<input type="radio" name="referal" class="inline" value="definitelyNot"/> Definitely not
</label><br/>
</div>
<div class="form-group">
<label>In your opinion, what would you say is my strongest skill?<br/>
<select id="improved" name="improved" class="form-control" required>
<option disabled selected>Select an option</option>
<option value="html/css">HTML/CSS</option>
<option value="javascript">Javascript</option>
<option value="ui/ux">UI/UX Design</option>
<option value="response">Responsiveness/Functionability</option>
<option>Project Ideas</option>
</select><br/>
</label>
</div>
<div>
<p class="text-center">What would you like to see improved? <span class="clue">(Check all that apply)</span></p>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="frontend"/> Front-End skills<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="backend" /> Back-End skills<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="ui/ux"/> UI/UX Design<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="response"/> Responsiveness/Functionality<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="response" /> Project Ideas<br/>
</label>
<label>
<input type="checkbox" name="improved" class="input-checkbox" value="number"/> Number of Projects<br/>
</label>
</div>
<div class="form-group">
<p>Any other comments or suggestions?</p>
<textarea name="comments" id="comments" rows="3" cols="30" class="input-textarea" placeholder="Enter your comments here..."></textarea>
</div>
<div class="form-group">
<button type="submit" id="submit" class="submit-button">Submit</button>
</div>
</form>
</div>
</body>
</html>/* styles.css */
.text-center {
text-align: center;
margin: auto;
}
.form-group {
margin: auto;
}
.clue {
text-align: center;
}
.input-checkboxes {
text-align: center;
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
font-family: lato, arial;
}
body {
background: url(images/tech2.webp);
background-size: 100%;
min-height: 100vh;
margin: 0;
padding: 0;
}
.container {
grid-column: 5 / 9;
max-width: 600px;
margin: 20px auto 20px;
padding: 30px;
border: 1px solid black;
border-radius: 8px;
background-color: rgba(255, 255, 255, 0.763);
}
header {
text-align: center;
padding-top: 20px;
padding-bottom: 20px;
}
h1 {
margin-bottom: 5px;
}
.checkbox, .radio-button {
display: block;
}
.inline {
margin-right: 6px;
text-align: left;
}
#submit {
font-size: 16px;
display: block;
margin: 0 auto;
background: #2f80ed;
color: white;
border: none;
border-radius: 6px;
padding: 10px 24px;
}
@media only screen and (max-width: 1000px) {
.container {
grid-column: 1 / 12;
}
}通过移除不必要的居中样式,并利用 CSS 属性调整页面高度,可以轻松实现单选框和复选框的文本对齐,以及页面全屏滚动效果。 在实际开发中,可以根据具体需求调整样式,以达到最佳的布局效果。 始终记得检查和重置默认样式,以避免不必要的样式冲突。
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