.but1 {
  display: inline-block;
  padding: 0.5em 1.0em;
  border-radius: 4px;
  background: #ffffff;
  font-family: sans-serif;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid #000000;
  margin: 10px;
  -webkit-transition: background 0.3s;
  -moz-transition: background 0.3s;
  transition: background 0.3s;
}

.but1:hover {
  background-color:#f5a425;
}

.but1:active,
.but1.is-checked {
  background-color: #f5a425;
  outline: none;
}

.btn1 {
  margin: 20px 0;
  text-align: center;
}

.btn1:after {
  content: '';
  display: block;
  clear: both;
}

img {
  vertical-align: middle;
  
}

.img-responsive {
  display: block;
  width: 350px;
  height: 200px;
}

.grid article {
  display: block;
  float: left;
  margin: 1%;
  width: 23%;
}

@media (max-width: 1024px) {
  .grid article {
    width: 31.3%;
  }
}

@media (max-width: 767px) {
  .grid article {
    width: 40%;
  }
}

@media (max-width: 479px) {
  .grid article {
    margin: 2% 0;
    width: 100%;
  }
}
.zoomed-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: none;
  z-index: 9999;
}

.zoomed-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}