body {
     line-height: 140%;
     width: 40em;
     margin-top: 2em;
     margin-bottom: 2em;
     margin-left: auto;
     margin-right: auto;
     padding: 0.5em 5em;
     border-width: thin;
     border-style: dotted;
     font-family:"Hiragino Kaku Gothic Pro", Meiryo, Osaka, "MS Gothic", sans-serifArial, Helvetica, sans-serif;
}
ul {
   list-style-type: disc;
}