pgadmin4/web/pgadmin/tools/debugger/static/css/debugger.css

#container {
  position: absolute;
  top: 40px;
  bottom: 0px;
  left: 0px;
  right: 0px;
}

.full-container {
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom:0px;
}

.full-container-pane {
  width: 100%;
  height: 100%;
}

.top-container {
  min-height: 300px;
  height: 100%;
}

.pg-debugger-panel {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0; bottom: 0; right: 0; left: 0;
}

.debugger-container .breakpoints {
  width: 0.9em;
}

.debugger-container .CodeMirror-activeline-background {
  background: #50B0F0;
}

.CodeMirror-foldmarker {
  color: blue;
  text-shadow: #b9f 1px 1px 2px, #b9f -1px -1px 2px, #b9f 1px -1px 2px, #b9f -1px 1px 2px;
  font-family: arial;
  line-height: .3;
  cursor: pointer;
}

.CodeMirror, .CodeMirror-gutters {
  min-height: 100%;
}

.CodeMirror-foldgutter {
  width: .9em;
}

.CodeMirror-foldgutter-open,
.CodeMirror-foldgutter-folded {
  cursor: pointer;
}

.CodeMirror-foldgutter-open:after {
  content: "\25BC";
}

.CodeMirror-foldgutter-folded:after {
  content: "\25B6";
}

/* To make font same as Query tool in messages tab */
.messages {
    white-space: pre-wrap;
    font-family: monospace;
    padding-top: 5px;
    padding-left: 10px;
    overflow: auto;
    height: 100%;
    font-size: 0.925em;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}