Centering header image?

I have another question!
I’ve already googled this and tried multiple times to change it myself but I just cannot get my header image to center!

here it is: https://www.virusrising.com/

I’m not sure if it’s the theme making it this way, but every time I try adjusting anything about the header it takes no effect.

here’s what i have:

h1.logo {
align:center;
}

#header {
margin-right: 80px;
height: auto;
margin: auto;
}

#header .description {
margin-left: 50px;
}