FieldSet is an HTML tag that is not commonly used, and is interesting in its syntax as follows:
<legend>fieldset name </legend>
<!--add to your content-->
The fieldset element is used to group elements in a form and to distinguish text in a document. It is somewhat similar to the behavior of the window frame. FieldSet is available in the Internet Explorer 4.0 and above versions of HTML and scripts.
The fieldset element element is a block element. and need to close the label, that is, must appear in pairs of:<fieldset></fieldset>.
In IE, if you do not add css,fieldset effect is rounded, but added a CSS will become a square corner of the. In Firefox, the effect is square corner.
The FIELDSET element groups the related elements within a form.
<fieldset> Label packs a portion of the form's content to produce a field for a set of related forms. <fieldset> labels do not have required or unique properties.
When a set of form elements is placed inside a <fieldset> label, the browser displays them in a special way that may have special boundaries, 3D effects, or even create a subform to handle the elements.
Example (login box)
<fieldset style= "width:300px" >
<legend> User Login </legend>
<form name= "Login" method= "POST" >
Account Number: <input name= "UserName" ></input>
Password: <input type= "password" name= "UserPassword" ></input>
<input type= "Submit" value= "Landing" name= "Submit" ></input>
<input type= "reset" value= "refill" name= "reset" ></input>