IPython/html/notebook/static/notebook/less/codecell.less

div.code_cell {
}

/* any special styling for code cells that are currently running goes here */
div.code_cell.running {
}

div.input {
    page-break-inside: avoid;
    .hbox();
}

/* input_area and input_prompt must match in top border and margin for alignment */
div.input_area {
    border: 1px solid @light_border_color;
    .corner-all;
    background: @cell_background;
}

div.input_prompt {
    color: navy;
    border-top: 1px solid transparent;
}

div.output_wrapper {
    /* This is a spacer between the input and output of each cell */
    margin-top: 5px;
    /* this position must be relative to enable descendents to be absolute within it */
    position: relative;
    .vbox()
}

/* class for the output area when it should be height-limited */
div.output_scroll {
  /* ideally, this would be max-height, but FF barfs all over that */
  height: 24em;
  /* FF needs this *and the wrapper* to specify full width, or it will shrinkwrap */
  width: 100%;

  overflow: auto;
  .corner-all;
  .box-shadow(inset 0 2px 8px rgba(0, 0, 0, .8));
}

/* output div while it is collapsed */
div.output_collapsed {
  margin: 0px;
  padding: 0px;
  .vbox();
}

div.out_prompt_overlay {
  height: 100%;
  padding: 0px 0.4em;
  position: absolute;
  .corner-all;
}

div.out_prompt_overlay:hover {
  /* use inner shadow to get border that is computed the same on WebKit/FF */
  .box-shadow(inset 0 0 1px #000);
  background: rgba(240, 240, 240, 0.5);
}

div.output_prompt {
    color: darkred;
}