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

WBOY
WBOY原創
2016-06-21 09:07:463173瀏覽
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

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