如何获得等宽度的输入和选择字段 [英] How to get equal width of input and select fields

问题描述

在表单上，​​我有一个选择和两个输入字段。这些元件是垂直对准的。不幸的是，我不能得到这些元素的宽度相等。

这是我的代码：

  < select name =name1style =width：198px> 
< option> value1< / option> 
< option> value2< / option> 
< / select>< br /> 
< input type =textname =id1style =width：193px>< br /> 
< input type =textname =id2style =width：193px>对于上面的例子，select元素的最佳宽度是198或199像素（当然我尝试了193像素的像素） ，但差异是主要的）。我认为，这取决于分辨率，在各种计算机和浏览器，因为这些元素没有相等的宽度（有时我认为差异是大约1或2像素）。我试图在div或表行中设置这些元素，但它没有帮助。 
 
 
 
问：如何获得这些元素的精确等宽？ 
解决方案
 更新的答案 
 
 
 
是如何改变输入/ textarea / select元素使用的框模型，使它们都以相同的方式工作。您需要使用为每个浏览器使用前缀实现的框大小属性
  -ms-box-sizing：content-box; 
 -moz-box-sizing：content-box; 
 -webkit-box-sizing：content-box; 
 box-sizing：content-box; 
  
这意味着我们前面提到的2px差异不存在.. 
 
 
 
示例，位于 http://www.jsfiddle.net/gaby/WaxTS/5/  
 
 
 
  注意： em> 
 
 
 
 
 
 
  
 
 
 
如果您重置其边框，则选择元素将总是小于输入元素。
 
 
 
示例： http：// www .jsfiddle.net / gaby / WaxTS / 2 /  
 
On the form, I have one select and two input fields. These elements are vertically aligned. Unfortunately, I can't get equal width of these elements. 

Here's my code:
<select name="name1" style="width:198px">
  <option>value1</option>
  <option>value2</option>
</select><br/>
<input type="text" name="id1" style="width:193px"><br/>
<input type="text" name="id2" style="width:193px">
For above example, the best width for select element is 198 or 199 px (of course I tried 193px, but the difference is major). I think, it depends on resolution, on various computers and browsers since these elements don't have equal widths (sometimes I thinks difference is about 1 or 2 px). I've tried to set these elements in div or table rows, but it doesn't help. 

Q: How could I get precisely equal width of these elements?  
解决方案
Updated answer

Here is how to change the box model used by the input/textarea/select elements so that they all behave the same way. You need to use the box-sizing property which is implemented with a prefix for each browser
-ms-box-sizing:content-box;
-moz-box-sizing:content-box;
-webkit-box-sizing:content-box; 
box-sizing:content-box;
This means that the 2px difference we mentioned earlier does not exist..

example at http://www.jsfiddle.net/gaby/WaxTS/5/

note: On IE it works from version 8 and upwards..



Original

if you reset their borders then the select element will always be 2 pixels less than the input elements..

example: http://www.jsfiddle.net/gaby/WaxTS/2/

                        
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