index.css

html, body {
  border: 0;
  padding: 0;
  margin: 0;
  height: calc(100% - 5px);
}

.frame {
  display: block;
  padding: 5px;
  border: 2px solid #000;
  margin-top: 5px;
  margin-left: 5px;
  margin-right: 5px;
  width: auto;
  box-sizing: border-box;
  width: auto;
  height: calc(100% - 5px);
}

.controls {
  border: 2px solid #000;
  height: 150px;
  box-sizing: border-box;
  margin-bottom: 5px;
}

.log {
  padding: 5px;
  border: 2px solid #000;
  box-sizing: border-box;
  width: 100%;
  height: calc(100% - 155px);
  overflow: auto;
  position: relative;
}

.log #btn_clear_log {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
}

.log .entries {
  display: table;
  box-sizing: border-box;
  width: 100%;
}

.log .entry {
  display: table-row;
  padding-top: 5px;
}

.log .entry .publisher,
.log .entry .content {
  display: table-cell;
  vertical-align: top;
  padding: 5px;
  font-size: 16px;
  line-height: 20px;
}

.log .entry .publisher .timestamp {
  font-weight: normal;
  font-size: 10px;
  color: black;
}

.log .entry .publisher {
  font-weight: bold;
  text-align: right;
  width: 80px;
  text-transform: uppercase;
  padding-right: 10px;
}

.log .entry .publisher.system {
  color: red;
}

.log .entry .publisher.system:before {
  content: 'SYSTEM';
}

.log .entry .publisher.console {
  color: orange;
}

.log .entry .publisher.console:before {
    content: 'CONSOLE';
}

.log .entry .publisher.local {
  color: grey;
}

.log .entry .publisher.local:before {
  content: 'LOCAL';
}

.log .entry .publisher.remote {
  color: green;
}

.log .entry .publisher.remote:before {
  content: 'REMOTE';
}

.log .entry .content.text {
  font-family: 'Source Code Pro', 'Courier New', monospace;
  font-size: 15px;
  white-space: pre-wrap;
}

.log .entry .content.binary {
  font-family: 'Source Code Pro', 'Courier New', monospace;
  font-size: 15px;
  white-space: pre-wrap;
  color: orange;
}

.controls .status {
  font-weight: bold;
  text-transform: uppercase;
}

.controls.closed .status {
  color: red;
}

.controls.closed .status:after {
  content: 'DISCONNECTED';
}

.controls.open .status {
  color: green;
}

.controls.open .status:after {
  content: 'CONNECTED';
}

.controls.connecting .status {
  color: orange;
}

.controls.connecting .status:after {
  content: 'CONNECTING';
}

.controls.closing .status {
  color: red;
}

.controls.closing .status:after {
  content: 'CLOSING';
}

.controls .control-pane {
  display: block;
  float: left;
  border-left: 1px solid #000;
  height: 100%;
  box-sizing: border-box;
  padding: 5px;
}

.controls .control-pane:first-child {
  border-left: none;
}

.controls table {
  padding: 0;
  margin: 0;
  border-collapse: collapse;
}

.controls table th {
  text-align: right;
  padding: 3px;
}

.controls table td {
  padding: 3px;
}

.controls #message_text {
  min-width: 300px;
  min-height: 60px;
}