.collapsible {
  background-color: rgba(0,0,0,0.4);
  color: white;
  cursor: pointer;
  padding-bottom: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}

.active, .collapsible:hover {
  background-color: #555;
}

.collapsible:after {
  content: '▼';
  color: white;
  font-weight: bold;
  float: right;
    font-size:20px;
  margin-left: 5px;
}

.active:after {
  content: "\2212";
}

.content {
  padding: 0px 16px 0px 16px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color:white;
  color:black;
 text-align: justify;
    
}
.content li{
    padding:0px 16px 0px 20px;
}



#portfolio{
    background-color: aliceblue;
    padding:16px;
   
}
#portfolio h1{
    font-size:40px;
}
.portfolio-grid {
	list-style: none;
	padding: 0;
	margin: 0 auto;
	text-align: center;
	width: 100%;
}

.portfolio-grid li {
	display: inline-block;
	margin: 5px 5px 5px 5px;
	vertical-align: top;
    width:320px;
}

.portfolio-grid li > a,
.portfolio-grid li > a img {
    width: 100%;
	border: none;
	outline: none;
	display: block;
	position: relative;
    transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    -webkit-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
}

.portfolio-grid li > a img:hover {
    border-radius: 50%;
    z-index: 9999;
}


/******************************************
 Animate.CSS By Dan Eden
******************************************/

.animated{-webkit-animation-duration:1s;-moz-animation-duration:1s;-o-animation-duration:1s;animation-duration:1s;-webkit-animation-fill-mode:both;-moz-animation-fill-mode:both;-o-animation-fill-mode:both;animation-fill-mode:both;}
@-webkit-keyframes flipInX {
    0% {
        -webkit-transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    
    40% {
        -webkit-transform: perspective(400px) rotateX(-10deg);
    }
    
    70% {
        -webkit-transform: perspective(400px) rotateX(10deg);
    }
    
    100% {
        -webkit-transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}
@-moz-keyframes flipInX {
    0% {
        -moz-transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    
    40% {
        -moz-transform: perspective(400px) rotateX(-10deg);
    }
    
    70% {
        -moz-transform: perspective(400px) rotateX(10deg);
    }
    
    100% {
        -moz-transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}
@-o-keyframes flipInX {
    0% {
        -o-transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    
    40% {
        -o-transform: perspective(400px) rotateX(-10deg);
    }
    
    70% {
        -o-transform: perspective(400px) rotateX(10deg);
    }
    
    100% {
        -o-transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}
@keyframes flipInX {
    0% {
        transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    
    40% {
        transform: perspective(400px) rotateX(-10deg);
    }
    
    70% {
        transform: perspective(400px) rotateX(10deg);
    }
    
    100% {
        transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}

.flipInX {
	-webkit-backface-visibility: visible !important;
	-webkit-animation-name: flipInX;
	-moz-backface-visibility: visible !important;
	-moz-animation-name: flipInX;
	-o-backface-visibility: visible !important;
	-o-animation-name: flipInX;
	backface-visibility: visible !important;
	animation-name: flipInX;
}
body {
  font-family: Verdana, sans-serif;
  margin: 0;
}

* {
  box-sizing: border-box;
}

.row > .column {
  padding: 0 8px;
}

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

.column {
  float: left;
  width: 25%;
}

/* The Modal (background) */
.modal {
  display:none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 25%;
  top: 0;
  
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}
.con{
    padding:40px;
    background-color: azure;
}
@media  (max-width:768px) {
    
   .modal {
  display:none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0%;
  top: 0;
  
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}
 
    
}


/* Modal Content */
.modal-content {
  position: relative;
  background-color: #fefefe;
  margin: auto;
  padding: 0;
  width: 90%;
  
}

/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 80px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
    z-index: 5;
}

.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}

.mySlides {
  display: none;
}

.cursor {
  cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

img {
  margin-bottom: -9px;
}

@media  (max-width:768px) {
img {
  margin-bottom: -4px;
}

}
.demo {
  opacity: 0.6;
}

.active,
.demo:hover {
  opacity: 1;
}

img.hover-shadow {
  transition: 0.3s;
}

.hover-shadow:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}