How can I resize custom map objects

Dear,

I want to increase the font size of a custom map object, but couldn't find anything.

I've created a custom map object for my library to show it in our map.

Currently the library is present in the map but the font size is to small so I wan't it to be a little bit bigger.

Could you please tell me how I can do this?

I used this to create a custom map object (found this in the kb) the library ID which I created is 3682 and I placed it in C:\Program Files (x86)\PRTG Network Monitor\webroot\mapobjects :

<!--Custom Map Objects: Traffic Internet BreakoutPoint>
 
<div class="map_object map_table <#sensor type="colorclassofstate" prefix="map_objectstate_" id="<@objectid>">" id="<@itemid>" objectid="<@objectid>" subid="<@subid>" style="overflow:hidden;<#mapobject type="coordinates" subid="<@subid>" mode="<@editmode>">">
  <#mapobject type="objectgrip" mode="<@editmode>">
  <#mapobject type="htmlbefore" subid="<@subid>">
  <#checkobjecttype objecttype="probenode,group" nicemessage="true" id="<@objectid>">
<div id="viewport">
<div id="libTree" class="libTree prtg-plugin" 
  data-plugin="libtree" 
  data-objectid="3682"
  data-lib-name='Library'
  data-view-type='<#system type="groupviewsize" varexpand="overwrite" overwrite="@grpvs">'
  data-controls-parent='#viewport'
  data-hide-controls="true"
  data-objects='<#table 
    id='3682'
    output='json'
    count='*'
    subcheck='1'
    noraw='1'
    content='library'
    sortby='probegroupdevice'
    filter_basetype='@ntxt('sensor')'
    columns='objid,name,access=treejson,probegroupdevice=treejson,basetype,icon,favorite,fold,devicenum=textraw,groupnum=textraw,totalsens=textraw,upsens=textraw,downsens=textraw,partialdownsens=textraw,warnsens=textraw,pausedsens=textraw,unusualsens=textraw,undefinedsens=textraw,downacksens=textraw,condition,status=textraw,message=textraw,info,priority,libkind,liblinkedid'>'
  >
    </div>
  </div>
  <#mapobject type="htmlafter" subid="<@subid>">
</div>

Thank you in advance,

Abdullah