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What right footer?
div#main {
border-radius: 10px;
}
To add CSS: use the “Additional CSS” option in the customizer. https://codex.ww.wp.xz.cn/CSS#Custom_CSS_in_WordPress
Learn to use the Chrome Developer Tools to help you see and test changes to your CSS.
There is an image on the right side in that column wich is to wide. Or will this get smaller when I make the image smaller?
I don’t see an image in the footer
See https://i.imgur.com/cHlmHkC.png

Ow I am sow stupid, I mean the right sidebar… sorry! Haha.
I am not english and I think I mixed it up a bit.
The sidebar is currently 33% of the page width. You can change that:
@media (min-width: 992px) {
.col-md-4 {
width: 25%;
}
}
You’ll need to increase the width of the main content area to compensate:
@media (min-width: 992px) {
.col-md-8 {
width: 75%;
}
}
If you have additional questions about your theme, I recommend asking at https://ww.wp.xz.cn/support/theme/satisfy#new-post so the plugin’s / theme’s developers and support community can help you with this.
Do I just copy and paste above CSS in the editor or? Because I can’t find this exact CSS anywhere.
To add CSS: use the “Additional CSS” option in the customizer. https://codex.ww.wp.xz.cn/CSS#Custom_CSS_in_WordPress