.portfolio {
	position: relative;
	margin: 15px 15px;
	float: left;
	width: 270px;
	transition-duration: 0.4s;
	animation: winanim 0.5s;
	-webkit-backface-visibility: visible;
	backface-visibility: visible;
	box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
	-webkit-box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
}

.portfolio:hover {
	box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
	-webkit-box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
}

.portfolio img {
  width: 100%;
  height: auto;
  border-radius: 5px
}

.portfolio_1 {
	position: relative;
	margin-top: 0px;
	margin-right: 0px;
	margin-left: 0px;
	margin-bottom: 0px;
	float: left;
	width: 500px;
	transition-duration: 0.4s;
	animation: winanim 0.5s;
	-webkit-backface-visibility: visible;
	backface-visibility: visible;
	box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
	-webkit-box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
}

.portfolio_1:hover {
	box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
	-webkit-box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
}

.portfolio_1 img {
  width: 100%;
  height: auto;
  border-radius: 5px
}

.portfolio_2 {
	position: relative;
	margin: 15px 15px;
	float: left;
	width: 400px;
	transition-duration: 0.4s;
	animation: winanim 0.5s;
	-webkit-backface-visibility: visible;
	backface-visibility: visible;
	box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
	-webkit-box-shadow: 0 3px 5px -1px rgba(64,61,61,0.20),0 5px 8px 0 rgba(0, 0, 0, .14),0 1px 14px 0 rgba(0, 0, 0, .12);
}

.portfolio_2:hover {
	box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
	-webkit-box-shadow: 0 8px 16px 0 rgba(0,0,0,0.13),0 17px 50px 0 rgba(0, 0, 0, .19);
}

.portfolio_2 img {
  width: 100%;
  height: auto;
  border-radius: 5px
}
.desc {
	padding: 10px 5px;
	text-align: center;
	font-size: 110%;
	background: #fff;
	color: #6B6B6B;
	text-transform: capitalize;
	font-style: normal;
	font-weight: 300;
}

.nav {
	margin-top: 0;
	margin-right: auto;
	margin-left: auto;
	margin-bottom: 0em;
}

.nav li a {
  margin: 5px;
  padding: 13px 50px;
  font-size: 16px;
  color: #1e2d3a;
  font-weight: 600;
  border: 1px solid #12B797;
  box-sizing: content-box;
  transition-duration: 0.4s;
}

.nav a:hover {
  background: #12B797 !important;
  color: #fff;
}

.nav .active {
  background-color: #12b797 !important;
  border: 1px solid #12b797;
  color: #fff;
}

@keyframes winanim {
  0% {
    opacity: 0;
    transform: scale3d(.3, .3, .3)
  }
  50% {
    opacity: 1
  }
}

/* //portfolio */

@media screen and (max-width: 1080px) {
  .portfolio {
    width: 280px;
  }
}

@media screen and (max-width: 991px) {
  .portfolio {
	width: 500px;
  }
}

@media screen and (max-width: 736px) {
  .nav li a {
    padding: 9px 35px;
  }
  .portfolio {
    width: 220px;
  }
}

@media screen and (max-width: 480px) {
  .nav li a {
    padding: 9px 25px;
  }
  .portfolio {
    width: 181px;
  }
}

@media screen and (max-width: 414px) {
  .nav li a {
    padding: 5px 19px;
    font-size: 14px;
  }
  .portfolio {
    width: 148px;
  }
}

@media screen and (max-width: 384px) {
  .portfolio {
    width: 93%;
    float: none;
  }
  .nav {
    padding-bottom: 1.5em;
  }
}

@media screen and (max-width: 375px) {
  .nav li a {
    padding: 5px 15px;
  }
}

@media screen and (max-width: 320px) {
  .nav li a {
    padding: 3px 11px;
  }
}