/* style sheet */
body{
  background-color:#aff;
}
h1{
  background-color:white;
  padding:10px;
}
#contents img{
  height:80px;
  width:auto;
}
#contents2 img{
  height:80px;
  width:auto;
}

.piece{
  float:left;
  padding:3px;
  margin:1px;
  background-color:#399;
  font-size:0.8em;
  height:100px;
}

.tar{
  text-align:right;
}

button{
  padding:10px;
  border:solid 1px;
  background-color:#faa;
}

.cf:before,
.cf:after {
  content: " ";
  display: table;
}

.cf:after {
  clear: both;
}

.cf {
  *zoom: 1;
}

.tac{
  text-align:center;
}
.pad10{
  padding:10px;
}