Inner Fieldset loosing border in Firefox NOT IE

Posted on 2007-11-20
Last Modified: 2013-12-07
I am using a fieldsets within a fieldset to show extra information.
It works in IE but on firefox 2... the right hand border on the inner fieldset disappears/reappears while resizing the screen.
Can anyone explain the Firefox behavior and suggest a solution.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" xml:lang="en" lang="en">


<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />


<style type="text/css"> { 

    clear: both; 

    margin-left: auto;

    margin-right: auto; 


	text-align: left; 

} p{ 

	font-size: .85em;

} img{ 

	margin-left: 1.5em;

} legend {

	font-weight: bold; 



.use-fieldset1 {

    float: left;

	width: 60%;


.use-fieldset2 {

    width: 35%;

	margin-right: 1em;

	padding: .5em; 

    float: right;

	border: .05em solid #dc0000;

	border-left: .05em solid #dc0000;

	border-bottom: .05em solid #dc0000;

	border-right: .05em solid #dc0000;

} .use-fieldset2 legend {


	background-color: #FFFFFF;

	font-weight: bold; 

	padding: 0.1em;





<!-- page caption -->

<div class="info noprint">



  <p> This list is updated on a regular basis for journals supplied by publishing partners.

    To report a problem or to update a link, please <a href="mailto:xyz"> contact HCN</a>.<br />


  <div class="use-fieldset1">

    <p> = Subscription provided by the Condor Institute<br />

      = Subscription provided by Q&amp;S<br />

      = Open Access title<br />

      = Trial only<br />



  <fieldset class="use-fieldset2">


  <p> Full Text Journal List now has new online collection management features and functionality. <a href="mailto:xyz"> Read&nbsp;more...</a> </p>






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Question by:janinel

Expert Comment

ID: 20324638
You've specified the second field set's border in em's. This should be avoided as it can cause a number of problems such as this one.

The following code will correct the issue.
.use-fieldset2 {

  width: 35%;

  margin-right: 1em;

  padding: .5em; 

  float: right;

  border: 1px solid #dc0000;


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LVL 30

Accepted Solution

VirusMinus earned 500 total points
ID: 20324701
When you use % age dimensions and to some extent ems browsers can guesstimate the actual dimension and you will sometimes get these sort of issues due to rounding.

The way I was able to fix this issue was to use fixed dimensions in px units.
.use-fieldset2 {

border:1px solid #DC0000;






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