body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
}

.panel {
  width: 49.5%;
  display: inline-block;
  height: 100%;
  vertical-align: top;
}

#menu {
  height: 2em;
  text-align: center;
  margin-bottom: 1em;
}

#container {
  height: calc( 100% - 5em );
  text-align: center;
}

#footer {
  height: 2em;
  padding: 0 3em;
}

#errMsg {
  display: inline-block;
  padding: 0.5em 1em;
  width: 100%;
}

#errMsg:not(:empty) {
  background-color: #F5A9A9;
}

#showSVG {
  border-right: 1px solid black;
}

#showSVG img,
#showCanvas canvas {
  max-width: 100%;
  max-height: 100%;
  width: 100%;
}

#inpExport {
  margin-left: 1em;
  text-decoration: underline;
  cursor: pointer;
}

.sep {
  display: inline-block;
  padding-left: 2em;
  margin-right: 2em;
  border-right: 1px solid black;
}