html,body {
  height: 100%;
}
body {
  margin: 0;
  padding: 0;
}
header {
  background-color: #00ffff;
  margin: 0;
  padding: 8px;
}
h1 {
  margin: 8px 0;
}
#main {
  display: flex;
  height: 100%;
}
#card_display {
  overflow: auto;
  padding: 8px;
  width: 50%;
  height: 100%;
}
#card_display table {
  width: 400px;
  min-width: 400px;
  margin-left: auto;
	margin-right: auto;
}
#card_display table tr td:nth-of-type(1){
  width: auto;
  white-space: nowrap;
}
#card_list {
  background-color: lightgreen;
  overflow: auto;
  width: 50%;
  padding: 8px;
  height: 100%;
}
#card_list thead tr {
  background-color: #FFFFE0;
}
#card_list tbody tr {
  background-color: #FFFFFF;
}
img {
  vertical-align: bottom;
}
#img_content {
  height: 256px;
  text-align: center;
  background-color: gray;
}
span.isindisabled {
  color: blue;
}