leaflet - Changing image size in JSON file

I am wondering how to change image size, available under the link in JSON file.

I base on the example:

http://www.gistechsolutions.com/leaflet/DEMO/baseball/BaseballPanel.html

which uses a links to the icon, based on the web. This is obviously fine, although the linked image must have a certain size like:

"Logo": "http:\/\/mlb.mlb.com\/mlb\/images\/team_logos\/logo_atl_79x76.jpg",
        "LeagueLogo": "http:\/\/mlb.mlb.com\/mlb\/images\/nl_75x75.png",

I have changed the link and put another one, so my JSON file (properties) currently looks like this:

"properties": {
    "name": "PE1 5RX",
    "MS_Ref": "REG/LYVELLYGDNS",
    "Owner": "Long Term Reversions (Dulwich) Limited",
    "Client_Ref": "LYVELLYGDNS",
    "Address": "The Keep, Lyvelly Gardens, Peterborough",
    "Postcode": "PE1 5RX",
    "Units": 18,
    "Logo": "https:\/\/www.cityfibre.com\/wp-content\/uploads\/2016\/09\/CF- 

logo-New-Green.png",
    "No_Under__H_Lease": 0,
    "FH_Title": "CB331893",
    "FH_Title_2": 0,
    "Possible_Query__over__availablity": "No"
  }

and attached logo is enormously big.

I tried to make sth like this:

"Logo": ""

But it doesn't work at all.

To make the graph running i need a rough URL in the quote.

How to change the size of this image to make it more adjusted to the particular map/website? Unless it's necessary to upload the smaller image on the server first and next link it to the JSON?

The logo, which I am interested in is under the link below:

https://www.cityfibre.com/wp-content/uploads/2016/09/CF-logo-New-Green.png

Answer

In your example, add width and height attribute to img element like shown below.

//place attributes in panel table.
    var fieldA=document.getElementById('pict');

    fieldA.innerHTML='';

with

//place attributes in panel table.
    var fieldA=document.getElementById('pict');
    fieldA.innerHTML='';

Your solution of changing to

"Logo": ""

will not work as in the code it is inside src attribute.