.page-header {
  padding: 20px 20px 20px 20px;
}

.page-header .title {
  color: #333;
  font-size: 20px;
}

.page-main {
  padding: 0 20px 0 20px;
  display: flex;
  flex-direction: row;
}

.page-main .panel-right {
  flex: 1
}

.page-main .panel-right .right-wrap {
  padding: 0 0px 0 40px;
  height: 100%;
}

.page-main .panel-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 0;
  min-width: 0;
  min-height: 600px;
}

.canvas-wrap {
  border: 1px solid #999;
  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAATUlEQVRYR+3VMQoAMAhD0Xq3HNs75QgtdOqsg1C+u5C8JWF7r8ELAiCAAAIIIIBARyAz75BLKg96a47HA5RrP48tAQIggAACCCDwhcABvG5/oRsc6n0AAAAASUVORK5CYII=") center center;
}

canvas {
  display: block;
}

.CodeMirror {
  /* height: 680px; */
  height: calc(100vh - 90px);
  height:-moz-calc(100vh - 90px); 
  height:-webkit-calc(100vh - 90px);
  border: 1px solid #ddd;
}

.log-wrap {
  flex: 1;
  min-height: 0;
  min-width: 0;
  width: 100%;
  max-height: 150px;
  border: 1px solid #ddd;
}