.responsive-iframe { width: 100%; height: 630px; }
.container_width { max-width: 1480px; }
.chat_div { width: 100%; height:600px}

.d_flex { align-items: initial; }
.titlepage h2 { font-size: 30px; margin-bottom:30px; }

/* Style the tab */
.tab {
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

/* Style the buttons that are used to open the tab content */
.tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
  min-height:650px;
}


/* Fade in tabs */
@-webkit-keyframes fadeEffect {
  from {opacity: 0;}
  to {opacity: 1;}
}

@keyframes fadeEffect {
  from {opacity: 0;}
  to {opacity: 1;}
}