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-" style="fill:none;stroke:#000000;stroke-linecap:square;stroke-width:0.8;"/>
+" style="fill: none; stroke: #000000; stroke-width: 0.8; stroke-linecap: square"/>
     </g>
    </g>
    <g id="xtick_17">
     <g id="line2d_24">
-     <path d="M 356.642724 123.892401 
+     <path d="M 357.622655 124.185042 
 L 359.585681 124.771269 
-" style="fill:none;stroke:#000000;stroke-linecap:square;stroke-width:0.8;"/>
+" style="fill: none; stroke: #000000; stroke-width: 0.8; stroke-linecap: square"/>
     </g>
    </g>
    <g id="xtick_18">
     <g id="line2d_25">
-     <path d="M 362.35492 117.880387 
+     <path d="M 363.327058 118.166598 
 L 365.274441 118.739933 
-" style="fill:none;stroke:#000000;stroke-linecap:square;stroke-width:0.8;"/>
+" style="fill: none; stroke: #000000; stroke-width: 0.8; stroke-linecap: square"/>
     </g>
    </g>
   </g>
@@ -327,74 +338,74 @@ L 365.274441 118.739933
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     <path d="M 363.914025 117.547317 
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-" style="fill:none;stroke:#000000;stroke-linecap:square;stroke-width:0.8;"/>
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    </g>
    <g id="Line3DCollection_3">
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+     <path d="M 363.971609 116.405514 
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diff --git a/lib/matplotlib/tests/baseline_images/test_figure/tightbbox_box_aspect_svg.png b/lib/matplotlib/tests/baseline_images/test_figure/tightbbox_box_aspect_svg.png
new file mode 100644
index 000000000000..dc2a22ec0ad3
Binary files /dev/null and b/lib/matplotlib/tests/baseline_images/test_figure/tightbbox_box_aspect_svg.png differ
diff --git a/lib/mpl_toolkits/mplot3d/axis3d.py b/lib/mpl_toolkits/mplot3d/axis3d.py
index d5f21e4b4fba..01d77d1f4370 100644
--- a/lib/mpl_toolkits/mplot3d/axis3d.py
+++ b/lib/mpl_toolkits/mplot3d/axis3d.py
@@ -420,13 +420,15 @@ def draw(self, renderer):
             # Get tick line positions
             pos = edgep1.copy()
             pos[index] = tick.get_loc()
-            pos[tickdir] = (
-                edgep1[tickdir]
-                + info['tick']['outward_factor'] * ticksign * tickdelta)
+            pos[tickdir] = edgep1[tickdir]
+            if tick._tickdir != 'out':
+                pos[tickdir] += (info['tick']['outward_factor']
+                                 * ticksign * tickdelta)
             x1, y1, z1 = proj3d.proj_transform(*pos, self.axes.M)
-            pos[tickdir] = (
-                edgep1[tickdir]
-                - info['tick']['inward_factor'] * ticksign * tickdelta)
+            pos[tickdir] = edgep1[tickdir]
+            if tick._tickdir != 'in':
+                pos[tickdir] -= (info['tick']['inward_factor']
+                                 * ticksign * tickdelta)
             x2, y2, z2 = proj3d.proj_transform(*pos, self.axes.M)
 
             # Get position of label
diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/add_collection3d_zs_array.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/add_collection3d_zs_array.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/add_collection3d_zs_scalar.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/add_collection3d_zs_scalar.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_isometric.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_isometric.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_labelpad.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_labelpad.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_ortho.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_ortho.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/bar3d_shaded.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/bar3d_shaded.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/computed_zorder.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/computed_zorder.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contour3d.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contour3d.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contourf3d.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contourf3d.png
index 33693b5e8ca2..e650a1a41d9a 100644
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contourf3d_fill.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/contourf3d_fill.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/equal_box_aspect.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/equal_box_aspect.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/errorbar3d.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/errorbar3d.png
index 8d0e1eaca8c5..a6f8506927ce 100644
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/errorbar3d_errorevery.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/errorbar3d_errorevery.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/lines3d.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/lines3d.png
index b1118180ea11..2e45cbd4c1a5 100644
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/minor_ticks.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/minor_ticks.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/poly3dcollection_alpha.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/poly3dcollection_alpha.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/poly3dcollection_closed.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/poly3dcollection_closed.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_axes_cube.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_axes_cube.png
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_axes_cube_ortho.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_axes_cube_ortho.png
index 205ac97158aa..31f0da57407d 100644
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diff --git a/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_lines_dists.png b/lib/mpl_toolkits/tests/baseline_images/test_mplot3d/proj3d_lines_dists.png
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index 134e75e170cc..c4fda1e4b2d2 100644
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