diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 133dd19..10c1e3d 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -106,6 +106,13 @@
 -
 
 Other Changes:
+- Fixed a couple of subtle bounding box vertical positioning issues relating to the handling of text
+  baseline alignment. The issue would generally manifest when laying out multiple items on a same line,
+  with varying heights and text baseline offsets.
+  Some specific examples, e.g. a button with regular frame padding followed by another item with a
+  multi-line label and no frame padding, such as: multi-line text, small button, tree node item, etc.
+  The second item was correctly offset to match text baseline, and would interact/display correctly,
+  but it wouldn't push the contents area boundary low enough.
 - InputText, Nav: Fixed Home/End key broken when activating Keyboard Navigation. (#787)
 - TreeNode: Fixed combination of ImGuiTreeNodeFlags_SpanFullWidth and ImGuiTreeNodeFlags_OpenOnArrow
   incorrectly locating the arrow hit position to the left of the frame. (#2451, #2438, #1897)
diff --git a/imgui.cpp b/imgui.cpp
index 6abba62..35ebb8a 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -3039,8 +3039,13 @@
     if (window->SkipItems)
         return;
 
+    // We increase the height in this function to accommodate for baseline offset.
+    // In theory we should be offsetting the starting position (window->DC.CursorPos), that will be the topic of a larger refactor,
+    // but since ItemSize() is not yet an API that moves the cursor (to handle e.g. wrapping) enlarging the height has the same effect.
+    const float offset_to_match_baseline_y = (text_baseline_y >= 0) ? ImMax(0.0f, window->DC.CurrLineTextBaseOffset - text_baseline_y) : 0.0f;
+    const float line_height = ImMax(window->DC.CurrLineSize.y, size.y + offset_to_match_baseline_y);
+
     // Always align ourselves on pixel boundaries
-    const float line_height = ImMax(window->DC.CurrLineSize.y, size.y);
     //if (g.IO.KeyAlt) window->DrawList->AddRect(window->DC.CursorPos, window->DC.CursorPos + ImVec2(size.x, line_height), IM_COL32(255,0,0,200)); // [DEBUG]
     window->DC.CursorPosPrevLine.x = window->DC.CursorPos.x + size.x;
     window->DC.CursorPosPrevLine.y = window->DC.CursorPos.y;
@@ -7859,7 +7864,7 @@
     }
 
     window->DC.CurrLineTextBaseOffset = ImMax(window->DC.PrevLineTextBaseOffset, group_data.BackupCurrLineTextBaseOffset);      // FIXME: Incorrect, we should grab the base offset from the *first line* of the group but it is hard to obtain now.
-    ItemSize(group_bb.GetSize(), 0.0f);
+    ItemSize(group_bb.GetSize());
     ItemAdd(group_bb, 0);
 
     // If the current ActiveId was declared within the boundary of our group, we copy it to LastItemId so IsItemActive(), IsItemDeactivated() etc. will be functional on the entire group.
diff --git a/imgui_internal.h b/imgui_internal.h
index fe1559d..3f5babb 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -1744,8 +1744,8 @@
     IMGUI_API void          PushOverrideID(ImGuiID id);
 
     // Basic Helpers for widget code
-    IMGUI_API void          ItemSize(const ImVec2& size, float text_baseline_y = 0.0f);
-    IMGUI_API void          ItemSize(const ImRect& bb, float text_baseline_y = 0.0f);
+    IMGUI_API void          ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);
+    IMGUI_API void          ItemSize(const ImRect& bb, float text_baseline_y = -1.0f);
     IMGUI_API bool          ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL);
     IMGUI_API bool          ItemHoverable(const ImRect& bb, ImGuiID id);
     IMGUI_API bool          IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged);
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index 7c266c7..be7b6df 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -213,7 +213,7 @@
         text_size.y = (pos - text_pos).y;
 
         ImRect bb(text_pos, text_pos + text_size);
-        ItemSize(text_size);
+        ItemSize(text_size, 0.0f);
         ItemAdd(bb, 0);
     }
     else
@@ -222,7 +222,7 @@
         const ImVec2 text_size = CalcTextSize(text_begin, text_end, false, wrap_width);
 
         ImRect bb(text_pos, text_pos + text_size);
-        ItemSize(text_size);
+        ItemSize(text_size, 0.0f);
         if (!ItemAdd(bb, 0))
             return;
 
@@ -359,17 +359,18 @@
     const char* text_begin = g.TempBuffer;
     const char* text_end = text_begin + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args);
     const ImVec2 label_size = CalcTextSize(text_begin, text_end, false);
-    const float text_base_offset_y = ImMax(0.0f, window->DC.CurrLineTextBaseOffset); // Latch before ItemSize changes it
-    const float line_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + g.Style.FramePadding.y*2), g.FontSize);
-    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x*2) : 0.0f), ImMax(line_height, label_size.y)));  // Empty text doesn't add padding
-    ItemSize(bb);
+    const ImVec2 total_size = ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x * 2) : 0.0f), label_size.y);  // Empty text doesn't add padding
+    ImVec2 pos = window->DC.CursorPos;
+    pos.y += window->DC.CurrLineTextBaseOffset;
+    ItemSize(total_size, 0.0f);
+    const ImRect bb(pos, pos + total_size);
     if (!ItemAdd(bb, 0))
         return;
 
     // Render
     ImU32 text_col = GetColorU32(ImGuiCol_Text);
-    RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, line_height*0.5f), text_col);
-    RenderText(bb.Min+ImVec2(g.FontSize + style.FramePadding.x*2, text_base_offset_y), text_begin, text_end, false);
+    RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, g.FontSize*0.5f), text_col);
+    RenderText(bb.Min + ImVec2(g.FontSize + style.FramePadding.x * 2, 0.0f), text_begin, text_end, false);
 }
 
 //-------------------------------------------------------------------------
@@ -691,7 +692,7 @@
     const ImGuiID id = window->GetID(str_id);
     const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
     const float default_size = GetFrameHeight();
-    ItemSize(size, (size.y >= default_size) ? g.Style.FramePadding.y : 0.0f);
+    ItemSize(size, (size.y >= default_size) ? g.Style.FramePadding.y : -1.0f);
     if (!ItemAdd(bb, id))
         return false;
 
@@ -5210,7 +5211,7 @@
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
     const bool display_frame = (flags & ImGuiTreeNodeFlags_Framed) != 0;
-    const ImVec2 padding = (display_frame || (flags & ImGuiTreeNodeFlags_FramePadding)) ? style.FramePadding : ImVec2(style.FramePadding.x, 0.0f);
+    const ImVec2 padding = (display_frame || (flags & ImGuiTreeNodeFlags_FramePadding)) ? style.FramePadding : ImVec2(style.FramePadding.x, ImMin(window->DC.CurrLineTextBaseOffset, style.FramePadding.y));
 
     if (!label_end)
         label_end = FindRenderedTextEnd(label);
@@ -5235,7 +5236,7 @@
     const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset);                    // Latch before ItemSize changes it
     const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x*2 : 0.0f);    // Include collapser
     ImVec2 text_pos(window->DC.CursorPos.x + text_offset_x, window->DC.CursorPos.y + text_offset_y);
-    ItemSize(ImVec2(text_width, frame_height), text_offset_y);
+    ItemSize(ImVec2(text_width, frame_height), padding.y);
 
     // For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing
     ImRect interact_bb = frame_bb;
@@ -5506,7 +5507,7 @@
     ImVec2 pos = window->DC.CursorPos;
     pos.y += window->DC.CurrLineTextBaseOffset;
     ImRect bb_inner(pos, pos + size);
-    ItemSize(size);
+    ItemSize(size, 0.0f);
 
     // Fill horizontal space.
     ImVec2 window_padding = window->WindowPadding;
@@ -6439,7 +6440,7 @@
     tab_bar->FramePadding = g.Style.FramePadding;
 
     // Layout
-    ItemSize(ImVec2(tab_bar->OffsetMaxIdeal, tab_bar->BarRect.GetHeight()));
+    ItemSize(ImVec2(tab_bar->OffsetMaxIdeal, tab_bar->BarRect.GetHeight()), tab_bar->FramePadding.y);
     window->DC.CursorPos.x = tab_bar->BarRect.Min.x;
 
     // Draw separator