body, html{
  
}
h1{
  text-align: center;
  color:white;
}
.containerxx-all{
  width: fit-content;
  margin: 20px auto;
  height: auto;
}
.containerxx{
  width: calc(25% - 6px);
  overflow:hidden;
  height: fit-content;
  margin:3px;
  padding: 0;
  display:block;
  position:relative;
  float:left;
}
img{
  width: 100%;
  transition-duration: .3s;
  /* max-width: 100%; */
  display:block;
  overflow:hidden;
  cursor:pointer;
}
.titlexx{
  position:absolute;
  display:block;
  cursor:pointer;
  top: 35%;
  display: none;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
  font-weight: bold;
  font-size: 1.6em;
  text-shadow: 1px 5px 10px black;
  transition-duration: .3s;
}
.text{
  position:absolute;
  top: 70%;
  cursor:pointer;
  max-width: 80%;
  text-align:center;
  left: 50%;
  text-shadow: 1px 5px 10px black;
  font-size: 1em;
  display:none;
  margin-right: -50%;
  transition-duration: .3s;
  transform: translate(-50%, -50%) 
}
.containerxx:hover img{
  transform: scale(1.2);
  transition-duration: .3s;
  filter: grayscale(50%);
  opacity: .2;
}
.containerxx:hover span{
  color:white;
  display: block;
  transition-duration: .3s;
}
@media only screen and (max-width: 900px) {
    .containerxx {
        width: calc(50% - 6px);
    }
}
@media only screen and (max-width: 400px) {
    .containerxx {
        width: 100%;
    }
}


.containeryy-all{
  width: fit-content;
  margin: 20px auto;
  height: auto;
}
.containeryy{
  width: calc(25% - 10px);
  overflow:hidden;
  height: fit-content;
  margin:5px;
  padding: 0;
  display:block;
  position:relative;
  float:left;
}
.containeryy:hover img{
  transform: scale(1.2);
  transition-duration: .3s;
  filter: grayscale(50%);
  opacity: .2;
}
.containeryy:hover span{
  color:white;
  display: block;
  transition-duration: .3s;
}
@media only screen and (max-width: 900px) {
    .containeryy {
        width: calc(50% - 6px);
    }
}
@media only screen and (max-width: 400px) {
    .containeryy {
        width: 100%;
    }
}
.titleyy{
  position:absolute;
  display:block;
  cursor:pointer;
  top: 35%;
  display: none;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
  font-weight: bold;
  font-size: 1.6em;
  text-shadow: 1px 5px 10px black;
  transition-duration: .3s;
}




/* start categories page, left side menu */
.collapsible {
  background-color: #777;
  color: white;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}

.active2, .collapsible:hover {
  background-color: #555;
}

.collapsible:after {
  content: '\002B';
  color: white;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}

.active2:after {
  content: "\2212";
}

.content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color: #f1f1f1;
}
/* end categories page, left side menu */