html {
  overflow-y: scroll;
}
 
#filters {
  margin: 40px 0;
  padding:0;
  list-style:none;
}

#filters li {
  float:left;
  font-size: 20px;
}

#filters li span {
  display: block;
  padding:5px 20px;   
  text-decoration:none;
  color:#3d3d3d;
  cursor: pointer;
  border: 1px solid #3d3d3d;
  margin-right: 15px;
}

#filters li span.active {
  background: #3d3d3d;
  color:#fff;
}
 
#portfoliolist {
  margin-left: -15px;
  margin-right: -15px;
}
 
#portfoliolist .portfolio {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -o-box-sizing: border-box;
  width:23%;
  margin:1%;
  display:none;
  float:left;
  overflow:hidden;
}

.portfolio-wrapper {
  overflow:hidden;
  position: relative !important;
  background: transparent;
  cursor:pointer;
}

.portfolio img {
  max-width:100%;
  position: relative;
  top:0;
  -webkit-transition: all 600ms cubic-bezier(0.645, 0.045, 0.355, 1);
  transition:         all 600ms cubic-bezier(0.645, 0.045, 0.355, 1);   
}

.portfolio .label {

}

.portfolio .label-bg {
  background: #000;
  width: 100%;
  height:100%;
  position: absolute;
  top:0;
  left:0;
  opacity: 0;
}

.portfolio .label-text {
  color: #3d3d3d;
  position: relative;
  z-index: 500;
  font-size: 18px;
  padding:5px 8px;
}

.portfolio .label-text a {
  color: #3d3d3d;
  text-decoration: none;
}
    
.portfolio .text-category {
  color: #999999;
  display:block;
  font-size: 18px;
}

.portfolio:hover .label {
  bottom:0;
}
.portfolio:hover img {
  top:-30px;
  opacity: 0.65;
}

/*  #Mobile (Portrait) - Note: Design for a width of 320px */
@media only screen and (max-width: 767px) {  
  #portfoliolist {
    margin: auto;
  }
  #portfoliolist .portfolio {
    width:48%;
    margin:1%;
  }   
}

@media only screen and (max-width: 400px) {  
  #portfoliolist .portfolio {
    width:98%;
    margin:1%;
  }   
}