MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
<style>
/* For privacy reasons, Wikimedia sites are configured to reject loading resources from external servers */
body {
    background: url('https://static.miraheze.org/emmytherobotwiki/0/06/Bgtile.png') 0 0 repeat;
    -webkit-animation: animate_background 6s linear 0s infinite;
    -moz-animation: animate_background 6s linear 0s infinite;
    -o-animation: animate_background 6s linear 0s infinite;
    animation: animate_background 6s linear 0s infinite;
}
    }
@-webkit-keyframes animate_background { 
    from { 
        background-position: 0 0;
    } 
    to { 
        background-position: -257px -257px;
    } 
}
@-moz-keyframes animate_background { 
    from { 
        background-position: 0 0;
    } 
    to { 
        background-position: -257px -257px;
    } 
}
@-o-keyframes animate_background { 
    from { 
        background-position: 0 0;
    } 
    to { 
        background-position: -257px -257px;
    } 
}
@keyframes animate_background { 
    from { 
        background-position: 0 0;
    } 
    to { 
        background-position: -257px -257px;
    }
}
/* Main Page Panel on Left Side */
#mw-panel{
	background-color: #DBF5FF;
/* Middle Page Content */
#content { background: linear-gradient(180deg, #DBF5FF 0%, #fff 77%); }
<img src="https://static.miraheze.org/emmytherobotwiki/6/6f/Emmylogothingy.png" alt="" width="200" height="200" id="hp"/>
#hp  {
float: left;    
 margin: 0 0 0 15px;
}
</style>