require less >= 1.7.5

fixes bug where `vbox > *` style was applied to `vbox()` classes

IPython/html/static/style/ipython.min.css

@@ -349,12 +349,6 b' div.cell {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   border-radius: 4px;
   box-sizing: border-box;
   -moz-box-sizing: border-box;
@@ -405,12 +399,6 b' div.inner_cell {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -448,12 +436,6 b' div.input {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.input {
@@ -471,12 +453,6 b' div.input {'
     display: flex;
     flex-direction: column;
     align-items: stretch;
-    /* Old browsers */
-    -webkit-box-flex: 0;
-    -moz-box-flex: 0;
-    box-flex: 0;
-    /* Modern browsers */
-    flex: none;
   }
 }
 /* input_area and input_prompt must match in top border and margin for alignment */
@@ -730,12 +706,6 b' div.output_wrapper {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 /* class for the output area when it should be height-limited */
 div.output_scroll {
@@ -767,12 +737,6 b' div.output_collapsed {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 div.out_prompt_overlay {
   height: 100%;
@@ -807,12 +771,6 b' div.output_area {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 div.output_area .MathJax_Display {
   text-align: left !important;
@@ -842,12 +800,6 b' div.output_area .rendered_html img {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.output_area {
@@ -865,12 +817,6 b' div.output_area .rendered_html img {'
     display: flex;
     flex-direction: column;
     align-items: stretch;
-    /* Old browsers */
-    -webkit-box-flex: 0;
-    -moz-box-flex: 0;
-    box-flex: 0;
-    /* Modern browsers */
-    flex: none;
   }
 }
 div.output_area pre {
@@ -1130,12 +1076,6 b' div.text_cell {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.text_cell > div.prompt {
@@ -1235,12 +1175,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-area .widget-subarea {
   padding: 0.44em 0.4em 0.4em 1px;
@@ -1263,12 +1197,6 b' div.cell.text_cell.rendered {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 2;
   -moz-box-flex: 2;
   box-flex: 2;
@@ -1342,12 +1270,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-hslider .ui-slider {
   /* Inner, invisible slide div */
@@ -1368,12 +1290,6 b' div.cell.text_cell.rendered {'
   flex-direction: row;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -1421,12 +1337,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-vslider .ui-slider {
   /* Inner, invisible slide div */
@@ -1449,12 +1359,6 b' div.cell.text_cell.rendered {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -1521,12 +1425,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   margin-top: 0px !important;
   margin-bottom: 0px !important;
   margin-right: 5px;
@@ -1565,12 +1463,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-vbox .widget-label {
   /* Vertical Label */
@@ -1624,12 +1516,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   box-sizing: border-box;
   -moz-box-sizing: border-box;
   -webkit-box-sizing: border-box;

IPython/html/static/style/style.min.css

@@ -7945,12 +7945,6 b' span#login_widget > .button .badge,'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   min-height: 80%;
 }
 .modal_stretch .modal-dialog .modal-body {
@@ -8224,12 +8218,6 b' div.cell {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   border-radius: 4px;
   box-sizing: border-box;
   -moz-box-sizing: border-box;
@@ -8280,12 +8268,6 b' div.inner_cell {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -8323,12 +8305,6 b' div.input {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.input {
@@ -8346,12 +8322,6 b' div.input {'
     display: flex;
     flex-direction: column;
     align-items: stretch;
-    /* Old browsers */
-    -webkit-box-flex: 0;
-    -moz-box-flex: 0;
-    box-flex: 0;
-    /* Modern browsers */
-    flex: none;
   }
 }
 /* input_area and input_prompt must match in top border and margin for alignment */
@@ -8605,12 +8575,6 b' div.output_wrapper {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 /* class for the output area when it should be height-limited */
 div.output_scroll {
@@ -8642,12 +8606,6 b' div.output_collapsed {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 div.out_prompt_overlay {
   height: 100%;
@@ -8682,12 +8640,6 b' div.output_area {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 div.output_area .MathJax_Display {
   text-align: left !important;
@@ -8717,12 +8669,6 b' div.output_area .rendered_html img {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.output_area {
@@ -8740,12 +8686,6 b' div.output_area .rendered_html img {'
     display: flex;
     flex-direction: column;
     align-items: stretch;
-    /* Old browsers */
-    -webkit-box-flex: 0;
-    -moz-box-flex: 0;
-    box-flex: 0;
-    /* Modern browsers */
-    flex: none;
   }
 }
 div.output_area pre {
@@ -9005,12 +8945,6 b' div.text_cell {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 @media (max-width: 480px) {
   div.text_cell > div.prompt {
@@ -9110,12 +9044,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-area .widget-subarea {
   padding: 0.44em 0.4em 0.4em 1px;
@@ -9138,12 +9066,6 b' div.cell.text_cell.rendered {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 2;
   -moz-box-flex: 2;
   box-flex: 2;
@@ -9217,12 +9139,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-hslider .ui-slider {
   /* Inner, invisible slide div */
@@ -9243,12 +9159,6 b' div.cell.text_cell.rendered {'
   flex-direction: row;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -9296,12 +9206,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-vslider .ui-slider {
   /* Inner, invisible slide div */
@@ -9324,12 +9228,6 b' div.cell.text_cell.rendered {'
   flex-direction: column;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-flex: 1;
   -moz-box-flex: 1;
   box-flex: 1;
@@ -9396,12 +9294,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   margin-top: 0px !important;
   margin-bottom: 0px !important;
   margin-right: 5px;
@@ -9440,12 +9332,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .widget-vbox .widget-label {
   /* Vertical Label */
@@ -9499,12 +9385,6 b' div.cell.text_cell.rendered {'
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
   box-sizing: border-box;
   -moz-box-sizing: border-box;
   -webkit-box-sizing: border-box;
@@ -9634,12 +9514,6 b' p {'
   flex-direction: row;
   align-items: stretch;
   /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
-  /* Old browsers */
   -webkit-box-pack: end;
   -moz-box-pack: end;
   box-pack: end;
@@ -10366,12 +10240,6 b' div#pager pre {'
   display: flex;
   flex-direction: row;
   align-items: stretch;
-  /* Old browsers */
-  -webkit-box-flex: 0;
-  -moz-box-flex: 0;
-  box-flex: 0;
-  /* Modern browsers */
-  flex: none;
 }
 .shortcut_key {
   display: inline-block;

IPython/html/tasks.py

@@ -10,8 +10,8 b" static_dir = 'static'"
 components_dir = pjoin(static_dir, 'components')
 here = os.path.dirname(__file__)
 
-min_less_version = '1.7.0'
-max_less_version = '1.7.5' # exclusive
+min_less_version = '1.7.5'
+max_less_version = '1.8.0' # exclusive
 
 def _need_css_update():
     """Does less need to run?"""