/* * {
  box-sizing: border-box;
}
.menu {
  float: left;
  width: 20%;
}
.menuitem {
  padding: 8px;
  margin-top: 7px;
  border-bottom: 1px solid #f1f1f1;
}
.main {
  float: left;
  width: 60%;
  padding: 0 20px;
  overflow: hidden;
}
.right {
  background-color: lightblue;
  float: left;
  width: 20%;
  padding: 10px 15px;
  margin-top: 7px;
}

@media only screen and (max-width:800px) {
  /* For tablets: */


/* .main {
    width: 80%;
    padding: 0;
  }
  .right {
    width: 100%;
  }
}
@media only screen and (max-width:500px) {
  /* For mobile phones: */


/* .menu, .main, .right {
    width: 100%;
  }
}



.video-container {
	position: relative;
	padding-bottom: 56.25%;
	padding-top: 30px;
	height: 0;
	overflow: hidden;
}

.video-container iframe,  
.video-container object,  
.video-container embed {
	position: absolute;
	top: 0;
  left: 0;
	width: 100%;
	height: 100%;
}

@media (min-width: 640px) { body {font-size:1rem;} } 
@media (min-width:960px) { body {font-size:1.2rem;} } 
@media (min-width:1100px) { body {font-size:1.5rem;} }

@media (min-device-width:600px) {
  img[data-src-600px] {
      content: attr(data-src-600px, url);
  }
}

@media (min-device-width:800px) {
  img[data-src-800px] {
      content: attr(data-src-800px, url);
  }
}

/* Media Queries: Tablet Landscape */


/* @media screen and (max-width: 1060px) {
  #primary { width:67%; }
  #secondary { width:30%; margin-left:3%;}  
}

/* Media Queries: Tabled Portrait */


/* @media screen and (max-width: 768px) {
  #primary { width:100%; }
  #secondary { width:100%; margin:0; border:none; }
}  */


/* --------------------------------------------------------- */


/* width */

::-webkit-scrollbar {
    width: 10px;
}


/* Track */

::-webkit-scrollbar-track {
    background: #f1f1f1;
}


/* Handle */

::-webkit-scrollbar-thumb {
    background: #888;
}


/* Handle on hover */

::-webkit-scrollbar-thumb:hover {
    background: #555;
}


/* border */

hr.new1 {
    border-top: 1px solid #3d9cd7;
}


/* Dashed border */

hr.new2 {
    border-top: 1px dashed #3d9cd7;
}


/* Dotted border */

hr.new3 {
    border-top: 1px dotted #3d9cd7;
}


/* Thick border */

hr.new4 {
    border: 1px solid #3d9cd7;
}


/* Large rounded border */

hr.new5 {
    border: 10px solid #3d9cd7;
    border-radius: 5px;
}


/* --------------------------------------------------------- */


/* css code of the table */

th,
td {
    border: 5px solid white;
}

table.d {
    table-layout: fixed;
    width: 50%;
    width: 100%;
}


/* --------------------------------------------------------- */

body {
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: rgb(255, 255, 255);
    /* < text color */
    width: 50%;
    height: 50%;
    background-size: cover;
    overflow: auto;
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-color: transparent;
    background-image: url('imgs/bg1.jpg');
    overflow-y: hidden;
    overflow: -moz-scrollbars-vertical;
    overflow-x: hidden;
    overflow-y: auto;
}


/* --------------------------------------------------------- */

.reponsive {
    max-width: 100%;
    height: auto;
}


/* --------------------------------------------------------- */


/* CSS codes of the topics */

.topic_style {
    color: white;
    font-style: italic;
    font-family: cursive;
}


/* --------------------------------------------------------- */

.underline_clr {
    color: #3d9cd7;
}