CSS code...

#%id=export_id% {
    %[if %id=button_alignment_array[0]%]%text-align: left;%[endif]%%[if %id=button_alignment_array[1]%]%text-align: center;%[endif]%%[if %id=button_alignment_array[2]%]%text-align: right;%[endif]%
    padding: %id=box_margin_array[1]% %id=box_margin_array[0]%;
}

#%id=export_id% a {
    display: %id=block_button%;
    background: %id=normal_fill_array[0]%;
    background-image: -webkit-linear-gradient(top, %id=normal_fill_array[0]%, %id=normal_fill_array[1]%);
    background-image: -moz-linear-gradient(top, %id=normal_fill_array[0]%, %id=normal_fill_array[1]%);
    background-image: -ms-linear-gradient(top, %id=normal_fill_array[0]%, %id=normal_fill_array[1]%);
    background-image: -o-linear-gradient(top, %id=normal_fill_array[0]%, %id=normal_fill_array[1]%);
    background-image: linear-gradient(to bottom, %id=normal_fill_array[0]%, %id=normal_fill_array[1]%);
    border-radius: %id=border_radius%;
    font-family: %id=font%;
    line-height: %id=line_height%;
    letter-spacing: %id=letter_spacing%;
    color: %id=normal_color%;
    font-size: %id=font_size%;
    padding: %id=box_padding_array[1]% %id=box_padding_array[0]%;
    text-decoration: none;
    outline: 0;
    /* Misc. text formatting */ %[if %id=style_array[0]% ]%font-weight: bold;%[endif]%%[if %id=style_array[1]% ]%font-style: italic;%[endif]%%[if %id=style_array[2]% ]%text-transform: uppercase;%[endif]%%[if %id=style_array[3]% ]%text-decoration: underline;%[endif]%
    %[if %("%id=text_shadow%" == "false")% ]%/* No text shadow */%[endif]%%[if %("%id=text_shadow%" == "true")% ]%text-shadow: %id=text_shadow_x%px %id=text_shadow_y%px %id=text_shadow_blur%px %id=text_shadow_color%;%[endif]%
    %[if %("%id=box_shadow%" == "false")% ]%/* No box shadow */%[endif]%%[if %("%id=box_shadow%" == "true")% ]%box-shadow: %id=box_shadow_x%px %id=box_shadow_y%px %id=box_shadow_blur%px %id=box_shadow_color%;%[endif]%
    %[if %("%id=border%" == "false")% ]%/* No border */%[endif]%%[if %("%id=border%" == "true")% ]%border: %id=border_style% %id=border_width% %id=border_normal%;%[endif]%
}

#%id=export_id% a:hover {
    color: %id=hover_color%;
    background: %id=hover_fill_array[0]%;
    background-image: -webkit-linear-gradient(top, %id=hover_fill_array[0]%, %id=hover_fill_array[1]%);
    background-image: -moz-linear-gradient(top, %id=hover_fill_array[0]%, %id=hover_fill_array[1]%);
    background-image: -ms-linear-gradient(top, %id=hover_fill_array[0]%, %id=hover_fill_array[1]%);
    background-image: -o-linear-gradient(top, %id=hover_fill_array[0]%, %id=hover_fill_array[1]%);
    background-image: linear-gradient(to bottom, %id=hover_fill_array[0]%, %id=hover_fill_array[1]%);
    text-decoration: none;
    /* Misc. text formatting */ %[if %id=style_array[0]% ]%font-weight: bold;%[endif]%%[if %id=style_array[1]% ]%font-style: italic;%[endif]%%[if %id=style_array[2]% ]%text-transform: uppercase;%[endif]%%[if %id=style_array[3]% ]%text-decoration: underline;%[endif]%
    %[if %("%id=border%" == "false")% ]%/* No border */%[endif]%%[if %("%id=border%" == "true")% ]%border: %id=border_style% %id=border_width% %id=border_hover%;%[endif]%
}

#%id=export_id% a:active {
    color: %id=active_color%;
    background: %id=active_fill_array[0]%;
    background-image: -webkit-linear-gradient(top, %id=active_fill_array[0]%, %id=active_fill_array[1]%);
    background-image: -moz-linear-gradient(top, %id=active_fill_array[0]%, %id=active_fill_array[1]%);
    background-image: -ms-linear-gradient(top, %id=active_fill_array[0]%, %id=active_fill_array[1]%);
    background-image: -o-linear-gradient(top, %id=hover_fill_array[0]%, %id=active_fill_array[1]%);
    background-image: linear-gradient(to bottom, %id=active_fill_array[0]%, %id=active_fill_array[1]%);
    text-decoration: none;
    /* Misc. text formatting */ %[if %id=style_array[0]% ]%font-weight: bold;%[endif]%%[if %id=style_array[1]% ]%font-style: italic;%[endif]%%[if %id=style_array[2]% ]%text-transform: uppercase;%[endif]%%[if %id=style_array[3]% ]%text-decoration: underline;%[endif]%
    %[if %("%id=border%" == "false")% ]%/* No border */%[endif]%%[if %("%id=border%" == "true")% ]%border: %id=border_style% %id=border_width% %id=border_active%;%[endif]%
}

#%id=export_id% a:focus {
    %[if %("%id=focus_outline%" == "false")% ]%/* No focus outline */%[endif]%%[if %("%id=focus_outline%" == "true")% ]%box-shadow: 0 0 0 %id=outline_width% %id=outline_colour%;%[endif]%
}

HTML markup...

<div id="%id=export_id%" class="button_builder">
    <a href="%id=link -href%>%id=label%</a>
</div>