nav {margin-left:-12em;



     background:babyblue;



     width:250px}



nav:hover{



     margin-left:0;}



img {width:250px;



     border:8px solid #98fb98;



     padding:5px;}



article{margin-left:40px;}



        h1{background:#98fb98;



        text-align:center;}



body{margin:0;



     font-size:120%;}



nav ul{padding-left:25px;}



table{border-collapse:collapse;



      border:2px alice blue;



      margin-left:3em;}



.left{text-align:left;}



.right{text-align:right;



       padding-left:1em;}



th{border-bottom:2px alice blue;}