div.polaroid {
  width: 100%;
  background-color: white;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  margin-bottom: 25px;
}


div.gallery {
  border: 1px solid #ccc;
}

div.gallery:hover {
  border: 1px solid #777;
}

div.gallery img {
  width: 100%;
  height: auto;
}

div.desc {
  padding: 15px;
  text-align: center;
}

* {
  box-sizing: border-box;
}

.responsive {
  padding: 0 6px;
  float: left;
  width: 24.99999%;
}

@media only screen and (max-width: 700px) {
  .responsive {
    width: 49.99999%;
    margin: 6px 0;
  }
}

@media only screen and (max-width: 500px) {
  .responsive {
    width: 100%;
  }
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

.bt1 {
    width: 160px;
    height: 50px;
    color: #fff;
    background: #f2184f;
    float: left;
    line-height: 50px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    margin-top: 50px;
    border-radius: 5px;
}




#myDIV {
    animation: mymove 5s infinite;
}

@keyframes mymove {
  50% {transform: rotate(5deg);
  }