Move whole Blog to the left

You can change that in your cascading style sheet ( css)
You can let your body float left.

You mean the css file in the wp_content folder?
How do I let the body float left?
(Sorry for this perhaps stupid question)

Bump.

The css is the stylesheet for the theme. It’s in the folder for your theme in the wp-content/themes folder.

Yes, i understand that, but it already says:

#container {
width: 765px;
margin: 0 auto;
text-align: left;
}

Or is that the wrong piece of script?

Start here:
https://codex.www.ads-software.com/Finding_Your_CSS_Styles
in that way you’ll know what to change.

Even if you mentioned the theme in use, unless we have it on our site or machine… we cannot check the code, so a live link is the most helpful.

In the CSS you wrote down
#container {
width: 765px;
margin: 0 auto;
text-align: left;
}
Is the text align left. it has nothing to do with the position of the container.

You can use float: left; for example.