.masonry { 
    -webkit-column-count: 4;
  -moz-column-count:4;
  column-count: 4;
  -webkit-column-gap: 1em;
  -moz-column-gap: 1em;
  column-gap: 1em;
   margin: 1.5em;
    padding: 0;
    -moz-column-gap: 1.5em;
    -webkit-column-gap: 1.5em;
    column-gap: 1.5em;
    font-size: .85em;
}
.item1 {
    display: inline-block;
    background: #fff;
    padding: 1em;
    margin: 0 0 1.5em;
    width: 100%;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-shadow: 2px 2px 4px 0 #ccc;
}
.item1 img{max-width:100%;}
ul.ul {
    background: #fff;
    margin: -33px 0 1.5em;  
    padding: 1em;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 2px 2px 4px 0 #ccc;
    list-style: none;
}
.item1 {
    box-shadow: none;
}
.img-responsive, .thumbnail>img, .thumbnail a>img, .carousel-inner>.item>img, .carousel-inner>.item>a>img {
    display: block;
    max-width: 100%;
    height: 450px;
    width: 100%;
}
@media only screen and (max-width: 320px) {
    .masonry {
        -moz-column-count: 1;
        -webkit-column-count: 1;
        column-count: 1;
    }
}

@media only screen and (min-width: 321px) and (max-width: 768px){
    .masonry {
        -moz-column-count: 2;
        -webkit-column-count: 2;
        column-count: 2;
    }
}
@media only screen and (min-width: 769px) and (max-width: 1200px){
    .masonry {
        -moz-column-count: 3;
        -webkit-column-count: 3;
        column-count: 3;
    }
}
@media only screen and (min-width: 1201px) {
    .masonry {
        -moz-column-count: 4;
        -webkit-column-count: 4;
        column-count: 4;
    }
}
.check-availability{
    padding: 20px 0;
    margin-top: -135px !important;
    background: rgba(0,0,0,0.7);
    position: fixed;
    width: 120%;
    margin-left: -15%;
}