.deck {
  background: #1DC8C6;
  padding: 10px;
  border-radius: 8px;
  border: 3px solid #bbb;
}

.item {
  background: #ccc;
  padding: 10px;
  border-radius: 8px;
  border: 3px solid #bbb;
}

.highlight_layout {
  text-align: center;
}

.plus_layout {
  font-size: 1.6vw;
  text-align: center;
  background: #38BEFF;
}

.plus_two_layout {
  font-size: 1.6vw;
  text-align: center;
  background: #0082C3;
}

.machina {
  font-size: 0.88vw;
  text-align: center;
  background: #0082C3;
}

.minus_layout {
  font-size: 1.6vw;
  text-align: center;
  background: #E51400;
}

.number_layout {
  font-size: 72px;
  text-align: center;
  vertical-align: middle;
}

.line-height {
  line-height: 90px;
}

.square_btn {
  position: relative;
  display: inline-block;
  padding: 0.25em 0.5em;
  text-decoration: none;
  color: #FFF;
  border-radius: 4px;
  /*角の丸み*/
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.2), inset 0 -2px 0 rgba(0, 0, 0, 0.05);
  font-weight: bold;
}

.square_btn:active {
  /*押したとき*/
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.30);
}

.reset_button {
  display: inline-block;
  position: relative;
  text-decoration: none;
  color: #000000;
  height: 50px;
  line-height: 50px;
  border-radius: 5px;
  text-align: center;
  vertical-align: middle;
  overflow: hidden;
  font-weight: bold;
  background-image: -webkit-linear-gradient(#fed6e3 0%, #ffaaaa 100%);
  background-image: linear-gradient(#fed6e3 0%, #ffaaaa 100%);
  text-shadow: 1px 1px 1px rgba(255, 255, 255, 0.66);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.28);
}

.reset_button:active {
  /*押したとき*/
  -ms-transform: translateY(2px);
  -webkit-transform: translateY(2px);
  transform: translateY(2px);
  /*沈むように*/
  box-shadow: 0 0 1px rgba(0, 0, 0, 0.15);
  background-image: -webkit-linear-gradient(#fed6e3 0%, #ffbcbc 100%);
  background-image: linear-gradient(#fed6e3 0%, #ffbcbc 100%);
  /*グラデーションを明るく*/
}