html, body {
  font-family: 'Titillium Web', sans-serif;
  letter-spacing: 1px;
  padding: 0;
  margin: 0;
  background: #ffffff;
}

* {
  box-sizing: border-box;
}

a {
  color: #4ab19a;
}

.clear {
  clear: both;
  float: right;
  width: 100%;
}

.grid-cont{
  display: grid;
  grid-template-columns: auto auto auto;
}
.grid-item{
  width: 100%;
}
@media(max-width:760px){
  .grid-cont{
    grid-template-columns: auto;
  }
}
@media(min-width:761px) and (max-width:900px){
  .grid-cont{
    grid-template-columns: auto auto;
  }
}
.contenedor {
  max-width: 1170px;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

.gallery a img {
  margin: 3px;
  border: 2px solid #fff;
  -webkit-transition: -webkit-transform .15s ease;
  -moz-transition: -moz-transform .15s ease;
  -o-transition: -o-transform .15s ease;
  -ms-transition: -ms-transform .15s ease;
  transition: transform .15s ease;
  position: relative;
}

.gallery a:hover img {
  -webkit-transform: scale(1.2);
  -moz-transform: scale(1.2);
  -o-transform: scale(1.2);
  -ms-transform: scale(1.2);
  transform: scale(1.2);
  z-index: 5;
}

.gallery a.big img {
  width: 40%;
}

.align-center {
  text-align: center;
}