You are still setting the svg to width:100% and height:100% in the css.
html,
body,
svg {
display: block;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
If you use 4 zeros then it will be zero I believe without the CSS,
Have a good read here:
I don’t know what the intrinsic ratio of that image is. If you made it then you should know what to set?