How to get rid of table borders in markdown?

Question

This is my markdown code

| Time         | Length        | Speed              | Mass         |    
|--------------|---------------|--------------------|--------------|
| Millisecond  | Millimetre    | Kilometre per hour | Milligram    |   
| Second       | Centimetre    | Foot per second    | Gram         |  
| Minute       | Inch          | Miles per hour     | Ounce        |     
| Hour         | Foot          | Knot               | Pound        |  
| Day          | Yard          | Metre per second   | Kilogram     |  
| Week         | Metre         |                    | Us ton       |  
| Month        | Kilometre     |                    | Tonne        |  
| Year         | Mile          |                    | Imperial ton |  
| Decade       | Nautical mile |                    |              |  
| Century      |               |                    |              |  
| Millennium   |               |                    |              |  

Output:

Time	Length	Speed	Mass
Millisecond	Millimetre	Kilometre per hour	Milligram
Second	Centimetre	Foot per second	Gram
Minute	Inch	Miles per hour	Ounce
Hour	Foot	Knot	Pound
Day	Yard	Metre per second	Kilogram
Week	Metre		Us ton
Month	Kilometre		Tonne
Year	Mile		Imperial ton
Decade	Nautical mile
Century
Millennium

I was wondering if it was possible to make it so that the table has no borders.

Answer 1

There's no mechanism in Markdown itself to hide table borders. You can override table CSS styles for generated HTML, but that will work only if you have access to CSS.

For services like Github where CSS styles are predefined by service owner and cannot be overriden the table borders simply cannot be hidden.