body {
  overflow: hidden;
}

.pazzle {
  width: 0;
  height: 0;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  align-content: flex-start;
  flex-wrap: wrap;
  /* border-left:1px solid #ddd;
  border-top:1px solid #ddd; */
  /*outline: 1px solid #ddd;*/
  background: linear-gradient(#ddd 1px, transparent 0),
  linear-gradient(90deg, #ddd 1px, transparent 0);
  /*background-size: 15px 15px,15px 15px*/
}

.pazzle::before {
  content: '';
  width: 100%;
  height: 1px;
  background: #ddd;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

.pazzle::after {
  content: '';
  width: 1px;
  height: 100%;
  background: #ddd;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

.pazzle-item {
  display: inline-block;
  border-right: 1px solid transparent;
  border-bottom: 1px solid transparent;
  box-sizing: border-box;
  transform-origin: center center;
  background-clip: content-box;
  transform: translate(0, 0) rotate(0);
}

.pazzle-bottom-item {
  display: inline-block;
  border-right: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
  box-sizing: border-box;
  transform-origin: center center;
  background-clip: content-box;
  transform: translate(0, 0) rotate(0);
  position: absolute;
  z-index: -1;
}

.pazzle-item.animate {
  transition: all 1s;
}

.pazzle-item:active {
  outline: 3px solid #67C23A;
  border:none
}