CSS 对齐标签和输入 [英] CSS to align label and input

问题描述

HTML 代码片段:

<label for="o-bs-sum-bug-ErrorPrefix">错误前缀</label><input type="text" id="o-bs-sum-bug-ErrorPrefix" name="ErrorPrefix" value=""/><label for="o-bs-sum-bug-ErrorNumber">错误编号</label><input type="text" id="o-bs-sum-bug-ErrorNumber" name="ErrorNumber" value=""/>....</fieldset>

仅使用 CSS(或 jquery)，无论浏览器大小如何，我都想将 label 和 input 元素彼此相邻配对.我也可以自由更改调整 HTML.如果需要.

解决方案

这是其中一件很难做到的事情.

许多人会建议为此使用 float:left;.就个人而言，我真的不喜欢花车；它们造成的问题似乎多于解决的问题.

我更喜欢使用内联块.这是一种将内联属性(因此您可以轻松地将元素彼此相邻对齐等)与块属性(例如能够指定尺寸)相结合的显示方法.

所以答案很简单，让它们都 display:inline-block; 并给提示一个固定的宽度，这将使它们旁边的输入字段对齐.

您还需要在输入字段后进行某种换行或换行，否则下一个提示将出现在同一行上，这不是您想要的效果.实现此目的的最佳方法是将每个提示及其字段放入容器

.

因此您的 HTML 将如下所示:

<div><label for="o-bs-sum-bug-ErrorPrefix">错误前缀</label><input type="text" id="o-bs-sum-bug-ErrorPrefix" name="ErrorPrefix" value=""/>

<div><label for="o-bs-sum-bug-ErrorNumber">错误编号</label><input type="text" id="o-bs-sum-bug-ErrorNumber" name="ErrorNumber" value=""/>

....</fieldset>

您的 CSS 将如下所示:

.myfields 标签，.myfields 输入 {显示:内联块；}.myfields 标签 {宽度:200px；/* 或任何你想要的大小 */}

希望有所帮助.

编辑:你可以使用这个插件来设置每个标签的宽度:

jQuery.fn.autoWidth = function(options){变量设置 = {限制宽度:假}如果(选项){jQuery.extend(设置，选项)；};var maxWidth = 0;this.each(function(){如果 ($(this).width() > maxWidth){if(settings.limitWidth && maxWidth >= settings.limitWidth) {maxWidth = settings.limitWidth;} 别的 {maxWidth = $(this).width();}}});this.width(maxWidth);}

从此页面评论

然后你这样使用它:

$("div.myfields div 标签").autoWidth();

仅此而已...所有标签都将占用最长标签的宽度

HTML Code Snippet:

<fieldset id="o-bs-sum-buginfo">
  <label for="o-bs-sum-bug-ErrorPrefix">Error Prefix</label>
  <input type="text" id="o-bs-sum-bug-ErrorPrefix" name="ErrorPrefix" value="" />

  <label for="o-bs-sum-bug-ErrorNumber">Error Number</label>
  <input type="text" id="o-bs-sum-bug-ErrorNumber" name="ErrorNumber" value="" />
  ....
</fieldset>

Using only CSS (or jquery), irrespective of the browser size, I want to pair label and input elements next to each other. I also do have freedom to change tweak the HTML. if required.

解决方案

This is one of those things which can be surprisingly tricky to get right.

Many people will suggest using float:left; for this. Personally, I really dislike floats; they seem to cause more problems than they solve.

My preference is to use inline-block. This is a display method that combines inline properties (so you can easily align elements next to each other, etc) with block properties (such as being able to specify dimensions).

So the answer is simply to make them both display:inline-block; and give the prompts a fixed width, which will make the input fields next to them line up.

You'll also need some sort of line feed or break after the input field, otherwise the next prompt will appear on the same line, which isn't the desired effect. The best way to achieve this is to put each prompt and its field into a container <div>.

So your HTML will look like this:

<fieldset id="o-bs-sum-buginfo" class="myfields">
  <div>
    <label for="o-bs-sum-bug-ErrorPrefix">Error Prefix</label>
    <input type="text" id="o-bs-sum-bug-ErrorPrefix" name="ErrorPrefix" value="" />
  </div>

  <div>
    <label for="o-bs-sum-bug-ErrorNumber">Error Number</label>
    <input type="text" id="o-bs-sum-bug-ErrorNumber" name="ErrorNumber" value="" />
  </div>
  ....
</fieldset>

and your CSS will look like this:

.myfields label, .myfields input {
  display:inline-block;
}

.myfields label {
  width:200px; /* or whatever size you want them */
}

Hope that helps.

Edit: you can use this plugin for setting the width of each label:

jQuery.fn.autoWidth = function(options) 
{ 
  var settings = { 
        limitWidth   : false 
  } 

  if(options) { 
        jQuery.extend(settings, options); 
    }; 

    var maxWidth = 0; 

  this.each(function(){ 
        if ($(this).width() > maxWidth){ 
          if(settings.limitWidth && maxWidth >= settings.limitWidth) { 
            maxWidth = settings.limitWidth; 
          } else { 
            maxWidth = $(this).width(); 
          } 
        } 
  });   

  this.width(maxWidth); 
}

from this page in a comment

and you use it this way:

$("div.myfields div label").autoWidth();

and thats all... all your labels are going to take the width of the longest label

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