<style>
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
}

h2 {
    color: #3498db;
    margin-bottom: 5px;
    text-align: center;
}

h3 {
    color: #2c3e50;
    margin-top: 5px;
    text-align: center;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

hr {
    border: 0;
    height: 15px;
    margin:18px 0;
    position:relative;
    background: -moz-linear-gradient(left, rgba(0,0,0,0) 0%, rgba(0,0,0,0) 10%, rgba(0,0,0,0.65) 50%, rgba(0,0,0,0) 90%, rgba(0,0,0,0) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(0,0,0,0)), color-stop(10%,rgba(0,0,0,0)), color-stop(50%,rgba(0,0,0,0.65)), color-stop(90%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* IE10+ */
    background: linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#00000000',GradientType=1 ); /* IE6-9 */ 
}

hr:before {
    content: "";
    display: block;
    border-top: solid 1px #f9f9f9;
    width: 100%;
    height: 15px;
    position: absolute;
    top: 50%;
    z-index: 1;
}



.collapsible {
    /*background-color: #3498db;*/
    color: white;
    cursor: pointer;
    padding: 18px;
    width: 35%;
    background-image: linear-gradient(to right, #3498db, rgba(255,0,0,0));
    border: none;
    text-align: center;
    /*align: center;*/
    outline: none;
    font-size: 22px;
    transition: 0.4s;
}

.active, .collapsible:hover {
    /*background-color: #2980b9;*/
    background-color: #3498db;
    /*background-image: linear-gradient(to right, #3498db, rgba(255,0,0,0));*/
    background-color: linear-gradient(to right, #3498db, rgba(255,0,0,0));
}

.content {
    padding: 0 18px;
    display: none;
    overflow: hidden;
    /*background-color: #f9f9f9;*/
    background-color: #ffffff;
    font-style: italic;
}

.artwork-info {
    /*background-color: #f9f9f9;*/
    background-color: #ffffff;
    padding: 15px;
    margin-top: 10px;
    border-radius: 5px;
}

.price {
    font-weight: bold;
    color: #27ae60;
    margin-top: 10px;
}

.box1 {
        width: 1000px;
        height: 400px;
        margin: auto;
}

.box2 {
	width: 3000px;
	height: 2400px;
	margin: auto;
}


.box_menu {
	width: 100%;
	max-width: 1000px;
	height: 60px;
	background-color:#2980b9;
	margin: auto;;
}

.box_menu2 {
	width: 20%;
	height: 50px;
	padding: 15px;
	margin: auto;
	text-align: center;
	/*vertical-align: bottom;*/
	color: white;
	/*display: flex;*/
        /*justify-content: center;*/
        /*align-items: center;*/
	font-size: 22px;
	a {text-decoration: none; color: white;}
	a:link { color: white;}
	a:visited { color: white;}
}

* {box-sizing: border-box;}
body {font-family: Verdana, sans-serif;}
.mySlides {display: none;}
img {vertical-align: middle; max-height:400px}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  max-height: 400px;
  position: relative;
  margin: auto;
}

.slideshow-container2 {
  max-width: 2800px;
  max-height: 2400px;
  position: relative;
  margin: auto;
}


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

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

/* The dots/bullets/indicators */
.dot {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active {
  background-color: #717171;
}

/* Fading animation */
.fade {
  animation-name: fade;
  animation-duration: 1.5s;
}

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


/* Style the Image Used to Trigger the Modal */

.myImg {
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
}

.myImg:hover {
    opacity: 0.7;
}

/* The Modal (background) */


.modal {
    display: none;
    /* Hidden by default */
    position: fixed;
    /* Stay in place */
    z-index: 1;
    /* Sit on top */
    padding-top: 100px;
    /* Location of the box */
    left: 0;
    top: 0;
    width: 100%;
    /* Full width */
    height: 100%;
    /* Full height */
    overflow: auto;
    /* Enable scroll if needed */
    background-color: rgb(0, 0, 0);
    /* Fallback color */
    background-color: rgba(0, 0, 0, 0.9);
    /* Black w/ opacity */
}

/* Modal Content (Image) */
.modal-content {
    margin: auto;
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    object-fit: contain;
}

/* Fullscreen Modal */
.fullscreen-modal {
    padding-top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fullscreen-modal .modal-content {
    max-height: 100vh;
}

/* Caption of Modal Image */
#caption {
    margin: auto;
    display: block;
    width: 100%;
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: auto;
    position: absolute;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
}

/* The Close Button */
.close {
    position: fixed;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    z-index: 2;
}

@media only screen and (max-width: 1000px) {
    body {
        padding: 10px;
    }
    
    .collapsible {
        font-size: 14px;
    }
    
    .modal-content {
        width: 100%;
        height: auto;
    }
    
    .fullscreen-modal {
        padding-top: 0;
    }
    
    .close {
        top: 10px;
        right: 20px;
        font-size: 30px;
    }
}
</style>
