Home >Web Front-end >HTML Tutorial >input输入框不能右对齐,怎么办?_html/css_WEB-ITnose

input输入框不能右对齐,怎么办?_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-21 09:07:463194browse
input不能右对齐,怎么办?

原本照着书学习javascript的,以前也是这样对齐的,但有今天有提示文字,就无法对齐了,看着太难受了。 

请问应该如何解决呢?




请问如何右对齐,而且把提示文字空格出来呢?





<html> <head>  <meta charset="UTF-8">  <title>验证</title><style type="text/css">body {  font:14px arial;  text-align:center;  margin:0 auto;}form {  margin-top:15px;  width:440px;   margin:0 auto;}div.field {  text-align:right;}div.heading {  margin-bottom:25px;}div.field {  margin-bottom:5px;  text-align:right;}span.help {  color:#660000;  font-style:italic;}</style>  <script type="text/javascript">  <!--     	 function validateRegEx(regex,input,helpText,helpMessage){	    if(!regex.test(input)){				if (helpText != null)            helpText.innerHTML = helpMessage;          return false;		}else{				 if (helpText != null)            helpText.innerHTML = "";          return true;				}	 	 }	  function validateNonEmpty(inputField, helpText) {        // See if the input value contains any text        return validateRegEx(/.+/,          inputField.value, helpText,          "请输入内容.");      }		 function validateLength(minLength, maxLength, inputField, helpText) {        // See if the input value contains at least minLength but no more than maxLength characters         if (!validateNonEmpty(inputField, helpText))          return false;         return validateRegEx(new RegExp("^.{" + minLength + "," + maxLength + "}$"),          inputField.value, helpText,          "请输入 " + minLength + " 到 " + maxLength +          " 个字符.");      }	   function validateZipCode(inputField, helpText) {        // First see if the input value contains data        if (!validateNonEmpty(inputField, helpText))          return false;        // Then see if the input value is a ZIP code        return validateRegEx(/^\d{5}$/,          inputField.value, helpText,          "请输入5位数字的邮编.");      }	   function validateDate(inputField, helpText) {        // First see if the input value contains data        if (!validateNonEmpty(inputField, helpText))          return false;        // Then see if the input value is a date        return validateRegEx(/^\d{2}\/\d{2}\/(\d{2}|\d{4})$/,          inputField.value, helpText,          "请输入日期 (格式为, <b>01/14/1975</b>).");      }	   function validatePhone(inputField, helpText) {        // First see if the input value contains data		        if (!validateNonEmpty(inputField, helpText))           return false;        // Then see if the input value is a phone number        return validateRegEx(/^\d{3}-\d{3}-\d{5}$/,          inputField.value, helpText,          "请输入电话号码 (例如, 123-456-07890).");      }	   function validateEmail(inputField, helpText) {        // First see if the input value contains data        if (!validateNonEmpty(inputField, helpText))          return false;        // Then see if the input value is an email address        return validateRegEx(/^[\w\.-_\+]+@[\w-]+(\.\w{2,3})+$/,          inputField.value, helpText,          "请输入正确的邮箱 例如, johndoe@acme.com).");      }  //-->  </script> </head> <body>  <form name="orderform" action="bannerocity.php" method="POST">   	<div class="field">       详细家庭地址:        <input id="message" name="message" type="text" 		onblur="validateLength(6, 10, this, document.getElementById('message_help'))"           /> 		   <span id="message_help" class="help"></span>	</div>	<div class="field">        邮政编码:        <input id="zipcode" name="zipcode" type="text"           onblur="validateZipCode(this, document.getElementById('zipcode_help'))" />		  <span id="zipcode_help" class="help"></span>      </div>	   <div class="field">      当前日期:        <input id="date" name="date" type="text"          onblur="validateDate(this, document.getElementById('date_help'))" />		  <span id="date_help" class="help"></span>      </div>	  <div class="field">        电话:        <input id="phone" name="phone" type="text"           onblur="validatePhone(this, document.getElementById('phone_help'))" />		  <span id="phone_help" class="help"></span>      </div>     	  <div class="field">	   邮箱:   <input id="email" name="email" type="text"          onblur="validateEmail(this, document.getElementById('email_help'))" />		  <span id="email_help" class="help"></span>    </div>  </form>   </body></html>



回复讨论(解决方案)

你是说邮箱那个不能靠右边吗?你把错误信息挪到下面一行就可以了。
style="float:right"        text-align:right  试试

.field .field {    position: relative;}.field .help {    position: absolute;    width: 300px;    text-align: left;    padding-left: 12px;}

解决方案:
1、像这种表单布局,个人推荐用table
2、像你这种不右对齐,其实是因为你没给提示信息一个固定的块存放
3、把提示信息做相对定位,这样就解决就不会因没分配空间,而把左边的元素挤过去了。

.field .field {    position: relative;}.field .help {    position: absolute;    width: 300px;    text-align: left;    padding-left: 12px;}



嗯,好了,谢谢你。但我还有些不明白。
可以解释一下这两句的作用吗

.field .field {
    position: relative;
}
.field .help {
    position: absolute;

提示用  placehold   你懂得


.field .field {    position: relative;}.field .help {    position: absolute;    width: 300px;    text-align: left;    padding-left: 12px;}



嗯,好了,谢谢你。但我还有些不明白。
可以解释一下这两句的作用吗

.field .field {
    position: relative;
}
.field .help {
    position: absolute;


上层指定relative, 下面所包含的元素,指定 absolute,则下层相对上层定位
relative 是相对定位,absolute是绝对定位。

所以说下层的位置是相对于上层来说是绝对的

text-ailgn:right  试试

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn