function Write-CSS {             
            
    <#
    .Synopsis
        Writes CSS styles 
    .Description
        Writes CSS style tags, CSS attributes, and links to external stylesheets
    .Example
        # Create a new CSS Style named reallyimportant
        Write-CSS -Name '#ReallyImportant' -Style @{
            "font-size" = "x-large"
            "font-weight"="bold"
        }
    .Example
        Write-CSS -OutputAttribute -Style @{
            "font-size" = "x-large"
            "font-weight"="bold"
        }    
    .Example
        Write-CSS -ExternalStyleSheet MyStyleSheet.css 
    .Example
        Write-CSS -Css @{
            "a"=@{
                "font-size"="x-large"
            }
        }
    .Link
        New-WebPage
    .Link
        Out-HTML
    .Link
        Write-Link
    #>                
    [CmdletBinding(DefaultParameterSetName='StyleDefinition')]            
    [OutputType([string])]            
    param(            
    # The name of the css style            
    [Parameter(Mandatory=$true,            
        Position=0,            
        ValueFromPipelineByPropertyName=$true,            
        ParameterSetName="StyleDefinition")]            
    [string]            
    $Name,            
                
    # The css values for a named style or a style attribute            
    [Parameter(Mandatory=$true,            
        ValueFromPipelineByPropertyName=$true,            
        Position=0,            
        ParameterSetName="StyleAttribute")]            
    [Parameter(Mandatory=$true,            
        ValueFromPipelineByPropertyName=$true,            
        Position=1,            
        ParameterSetName="StyleDefinition")]            
    [Hashtable]            
    $Style,            
            
    # A CSS table, containing nested tables of styles            
    [Parameter(Mandatory=$true,            
        ValueFromPipelineByPropertyName=$true,            
        ParameterSetName="Table")]            
    [Hashtable]            
    $Css,            
            
    # If set, will not output a style tag when outputting a CSS table.            
    [Parameter(            
        ValueFromPipelineByPropertyName=$true,            
        ParameterSetName="Table")]            
    [switch]            
    $NoStyleTag,            
            
                
    # A path to an external syle sheet            
    [Parameter(Mandatory=$true,            
        ValueFromPipelineByPropertyName=$true,            
        ParameterSetName="StyleSheet")]            
    [uri]            
    $ExternalStyleSheet,            
                
    # If set, will output the attributes of a style            
    [Parameter(Mandatory=$true,            
        ValueFromPipelineByPropertyName=$true,            
        ParameterSetName="StyleAttribute")]            
    [switch]            
    $OutputAttribute            
    )             
                
    process {            
        if ($pscmdlet.ParameterSetName -eq 'StyleSheet') {            
            "<link rel='stylesheet' type='text/css' href='$ExternalStyleSheet' />"            
        } elseif ($pscmdlet.ParameterSetName -eq 'Table') {            
            $cssLines = foreach ($kv in $css.GetEnumerator()) {            
                $name = $kv.Key             
                            
                Write-CSS -Name $name -Style $kv.Value            
            }            
"$(if (-not $NoStyleTag) { '<style type=''text/css''>' })
$cssLines
$(if (-not $NoStyleTag) { '</style>'})"            
        } elseif ($pscmdlet.ParameterSetName -eq 'StyleDefinition') {            
            $cssText = foreach ($kv in $Style.GetEnumerator()) {            
                "$($kv.Key):$($kv.Value)"            
            }            
            $cssText = $cssText -join ";$([Environment]::NewLine)    "            
            "$name {
    $cssText
}"                        
        } elseif ($pscmdlet.ParameterSetName -eq 'StyleAttribute') {            
                                        
            # Just in case they called the command with splatting, fall back on the keys            
            # (which will not preserve order)            
                        
            @(foreach ($kv in $style.Keys) {            
                if ($style[$kv]) {            
                    "$($kv):$($style[$kv])"            
                }            
            }) -join ';'            
                        
        }            
    }            
            
}