div.panel
{
  text-align: center;
  border: 1px solid #a0a0a0;
  -webkit-user-select: none;
  -moz-user-select: none;
  -khtml-user-select: none;
  -ms-user-select: none;
  overflow:hidden;
  display:none;
  box-shadow: 2px 2px 10px 0px rgba(50, 50, 50, 0.3);
  backdrop-filter: blur(6px);
}

div.panel.left
{
  position: absolute;
  width: 250px;
  left:0;
  bottom:0;
}

div.panel.right
{
  position:absolute;
  width: 250px;
  right:0;
  bottom:0;
}

div.panel.show
{
  display:block;
}

div.panel.show > .header > button.maximize
{
  display: none;
}

div.panel.show > .header > button.minimize
{
  display: block;
}

div.panel.show.minimized > .header > button.minimize
{
  display: none;
}

div.panel.show.minimized > .header > button.maximize
{
  display: block;
}

div.panel > .header
{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:24px;
  border-bottom: 1px solid #e0e0e0;
  line-height: 24px;
  text-align: center;
}

div.panel > .header > .title
{
  line-height: 24px;
  font-weight: bold;
  text-decoration: none;
  color:#404040;
}

div.panel > .header > .title:focus
{
  outline:1px dotted black;
  outline-offset: 2px;
}

div.panel > .header > button
{
  position:absolute;
  top:0;
  bottom:0;  
  width: 16px;
  height: 16px;
  margin: 4px;
  padding:0;
  background-image: url(images/close.svg);
  background-repeat: no-repeat;
  background-size: 10px 10px;
  background-position: center center;
  cursor: pointer;
  border-radius: 2px;
  background-color: #f6f6f6;
  border:none;
  box-shadow: none;
}

div.panel > .header > button.minimize
{
  left:0;
  background-image: url(images/minimize.svg);
}

div.panel > .header > button.maximize
{
  left:0;
  background-image: url(images/maximize.svg);
}

div.panel > .header > button.close
{
  right:0;
  background-image: url(images/close.svg);
}

div.panel > .header > button:hover
{
  background-color: #ffb0b0; 
}

div.panel > .header > button:focus
{
  outline:1px dotted black;
}

div.panel > .body
{
  position:absolute;
  top:25px;
  left:0;
  right:0;
  bottom:0;
  overflow: auto;
}

div.panel > .body.center
{
  display: flex;
  justify-content: center;
  align-items: center;  
}

div.panel > .body.padding
{
  padding: 4px;
}

.animate > div.panel
{
  transition: height 1s, bottom 1s;
}

div.resizer
{
  width: 4px;
  position: absolute;
  bottom: 0;
  background: transparent;
  z-index: 10;
}

div.resizer:hover
{
  cursor: col-resize;  
}

@media all and (max-width : 768px)
{
  div.panel.show
  {
    display:block;
    left: 0;
    right: 0;
    width: auto;
  }
}