.img-responsive{
  display: block;
  max-width: 75%;
  height: auto;
    margin: 15px 0px;
}
 .left { float: left; margin: 15px 15px 0 0;}
.right {float: right; margin: 15px 15px 15px 0}
.imgSmall {  max-width: 35%;}
.imgMin {  max-width: 25%;}
.nav {{position:fixed;right:0;left:0;}