html, body, span {
	margin: 0;
	padding: 0;
}
body {
    background: #000;
}
.mm {
    width: 256px;
    height: 256px;
    display: block;
    background: url("../img/mm.jpg");
    position: fixed;
    border-radius: 50%;
    
}
.bz { 
    width: 256px;
    height: 256px;
    display: block;
    background: url("../img/bz.jpg");
    position: fixed;
    border-radius: 50%;
}
.kt {
    width: 256px;
    height: 256px;
    display: block;
    background: url("../img/kt.jpg");
    position: fixed;
    border-radius: 50%;  
}
.who {
    display: none;
}