.title {
  margin-top:20px; 
  margin-left:10px; 
  color: rgb(104, 103, 103);
  font-weight: bold;
}

.footer {
  background-color: black; 
  position: absolute;
  bottom: 0;
  text-align: left;
  width: 100%
}

.container {
  position: relative; 
  background-color: black;
}

.navbar {
  width: 100%;
  background-color: #555;
  overflow: auto;
}

.navbar a {
  float: left;
  padding: 12px;
  color: white;
  text-decoration: none;
  font-size: 17px;
}

.navbar a:hover {
  background-color: #000;
}

.active {
  background-color: #4CAF50;
}

@media screen and (max-width: 500px) {
  .navbar a {
    float: none;
    display: block;
  }
}

body {font-family: Arial, Helvetica, sans-serif;}

/* div {
  resize: both
} */

 /* Style buttons */
 .btn {
  background-color: #4CAF50;
  border: none;
  color: white;
  margin-top: 10px;
  margin-right: 10px;
  margin-left: 78.2%;
  cursor: pointer;
  font-size: 18px;
  position: absolute;
}

/* Darker background on mouse-over */
.btn:hover {
  background-color: rgb(35, 78, 36);
} 

/* Contact html */
.contact {
  display: inline-block;
  margin-bottom: 20px;
}
.text {
  color: black;
  font-size: 16px;
  position: relative;
  text-decoration: none;
  margin-left: 20px;
}

/* Contact info
.researcher {
  width: 180px;
  height: 300px;
  border-radius: 20px 20px 20px 20px;
  transition: .5s ease;
  backface-visibility: hidden;
  opacity: 1;
  margin-right: 20px;
}

.file {
  position: relative;
  width: 180px;
  height: 300px;
  margin-left: 20px;
  margin-top: 20px;
}

.info_researcher {
  transition: .5s ease;
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  text-align: center;
}

.file:hover .researcher {
  opacity: 0.3;
}

.file:hover .info_researcher {
  opacity: 1;
} */
.name_researcher {
  color: black;
  font-weight: bold;
  font-style: italic;
  font-size: 16px;
}

.job_researcher {
  color: black;
  font-size: 12px;
}

.mail_researcher {
  color: black;
  font-size: 12px;
}

.link {
  text-decoration: none;
  color: lightseagreen
}

#option {
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s;
}

#option: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: 80%;
  max-width: 700px;
}

/* Caption of Modal Image (Image Text) - Same Width as the Image */
#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}

/* Add Animation - Zoom in the Modal */
.modal-content, #caption {
  animation-name: zoom;
  animation-duration: 0.6s;
}

@keyframes zoom {
  from {transform:scale(0)}
  to {transform:scale(1)}
}

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

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

/* 100% Image Width on Smaller Screens */
@media only screen and (max-width: 700px){
  .modal-content {
    width: 100%;
  }
}

.video_container{
  overflow:hidden;
  display:block;
}

#glass_1{
  margin-top: -45px;
  margin-bottom: -45px;
}
#glass_2{
  margin-top: -45px;
  margin-bottom: -45px;
}

video::-webkit-media-controls-fullscreen-button {
  display: none;
}

video::-webkit-media-controls-play-button {}
video::-webkit-media-controls-timeline {}
video::-webkit-media-controls-current-time-display{}
video::-webkit-media-controls-time-remaining-display {}
video::-webkit-media-controls-time-remaining-display {}
video::-webkit-media-controls-mute-button {
  display:none;
}
video::-webkit-media-controls-toggle-closed-captions-button {
}
video::-webkit-media-controls-volume-slider {
  display:none;
}

.tooltip {
  position: relative;
  display: inline-block;
  /* border-bottom: 1px dotted black; If you want dots under the hoverable text */
}

/* Tooltip text */
.tooltip .tooltiptext {
  visibility: hidden;
  width: 250px;
  background-color: white;
  color: black;
  text-align: center;
  padding: 5px 0;
  border-radius: 6px;
  border:solid;
  border-color: black;
 
  /* Position the tooltip text - see examples below! */
  position: absolute;
  z-index: 99999;
  top: 100%;
  left: -90px;
  margin-left: -60px;
}

/* Show the tooltip text when you mouse over the tooltip container */
.tooltip:hover .tooltiptext {
  visibility: visible;
}