.center{
  text-align: center;
  border: 3px solid white;
  background-color: white;
  color: grey;
}
.navbar {
    overflow: hidden;
    background-color: #333;
    position: sticky;
    position: -webkit-sticky;
    top: 0;
}

.navbar a {
    float: right;
    display: block;
    color: white;
    text-align: center;
    padding: 10px 20px;
    text-decoration: none;
}
#navbar a.right {
    float: left;
}
.navbar a:hover {
    background-color: #ddd;
    color: black;
}
.navbar a.active {
    background-color: #666;
    color: white;
}


@media screen and (max-width: 500px) {
  .button {
    float: right;
    display: block;
    text-align: right;
  
  }

  
  @media screen and (max-width: 400px) {
    .navbar a {
        float: none;
        width: 100%;
    }
}
}

* {box-sizing: border-box}
body {font-family: Verdana, sans-serif; margin:0}
.mySlides {display: none}
img {vertical-align: middle;}


.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
  z-index: -99;
}


.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
}


.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}


.prev:hover, .next:hover {
  background-color: rgba(0,0,0,0.8);
}


.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}


.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}


.dot {
  cursor: pointer;
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: orange;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active, .dot:hover {
  background-color: #717171;
}


.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}


@media only screen and (max-width: 300px) {
  .prev, .next,.text {font-size: 11px}
}
div.sticky {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    background-color: yellow;
    padding: 50px;
    font-size: 20px;
}




#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: #333333;
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: #555;
}






div.gallery {
    border: 1px solid #ccc;
}

div.gallery:hover {
    border: 1px solid #777;
}

div.gallery img {
    width: 100%;
    height: auto;
}

div.desc {
  font-size: 17px;
    padding: 15px;
    text-align: center;
}

* {
    box-sizing: border-box;
}

.responsive {
    padding: 0 35px;
    float: left;
    width: 24.99999%;
}

@media only screen and (max-width: 700px) {
    .responsive {
        width: 49.99999%;
        margin: 6px 0;
    }
}

@media only screen and (max-width: 500px) {
    .responsive {
        width: 100%;
    }
}

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



.container {
    padding: 20px;
    background-color: #f1f1f1;
}

input[type=text], input[type=submit] {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

input[type=checkbox] {
    margin-top: 16px;
}

input[type=submit] {
    background-color: #333;
    color: white;
    border: none;
}

input[type=submit]:hover {
    opacity: 0.8;
}