.test-container {
  position: relative;
  width: 100%;
  height: auto;
/*  border: 1px red solid;
*/
}

/*
.column1 {
  max-width: 22.5%;
}
.fixedratio1 {
  padding-top: 75%;*/  /* 225px/300px = 0.75 */
/*
  background-color: lightgreen;
  background-image: url('../images/2019-03-22/P1080163_600w.png');
  background-size: cover;
}

.column2 {
  max-width: 11.25%;
}
.fixedratio2 {
  padding-top: 156.66%;
  padding-top: 133,33%;
  padding-top: 75%;

  background-color: lightgreen;
  background-image: url('../images/2019-03-22/P1080174_600h.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.fixedratio3 {
  padding-top: 75%;

  background-color: lightgreen;
  background-image: url('../images/2019-03-22/P1080161_600w.png');
  background-size: cover;
}
*/

input[type=checkbox] {
  display: none;
}

input[type=checkbox]:checked ~ label .img-text {
  display: none;
}

input[type=checkbox]:checked ~ label .image_1 {
  position: fixed;
  top: 21%;
  left: 5.5%;
  width: 65%;
  top: 0;
  left: 0;
  width: 400px;
  max-width: 750px;
  height: auto;
  height: 300px;
  padding: 0;
  z-index: 3;
}

.image-box {
  width:22.5%;
  margin-bottom: 2rem;
  margin-right: 2px;
  float:left;
  text-align: center;
  cursor: pointer;
}

.img-text {
  position: absolute;
  display: inline-block;
}

.image {
  padding-top: 75%;
  background:lightgreen;
}

.image_1 {
  background-image: url('../images/2019-03-22/P1080163_600w.png');
  background-size: cover;
}
.image_2{
  background-image: url('../images/2019-03-22/P1080174_600h.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}
.image_3{
  background-image: url('../images/2019-03-22/P1080161_600w.png');
  background-size: cover;
}
.image_4{
  background-image: url('../images/2019-03-22/P1080161_600w.png');
  background-size: cover;
}
.image_5{
  background-image: url('../images/2019-03-22/P1080174_600h.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}
.image_6{
  background-image: url('../images/2019-03-22/P1080161_600w.png');
  background-size: cover;
}