6.png"/></center></font></p>
</example>

                <p>This ability to mix fixed and variable sized elements is
            crucial in interface design. It really comes into its own when building
        a hierarchy of layouts, described next.</p>
                
            
        
            <br clear="all"/><hr/><h3 class="hbg"><a name="">&nbsp;</a><a name="1.3.1">
                        &nbsp;</a>1.3.1: 
                        Minimum sizes&nbsp;<a href="#Top"><img src="Images/uparrow.png" bo