fixed select2 paddings/margins

build/scss/plugins/_select2.scss

@@ -16,7 +16,7 @@
   .select2-selection--single {
     border: $input-border-width solid $input-border-color;
     //border-radius: $input-radius;
-    padding: 6px 12px;
+    padding:  ($input-padding-y * 1.25) $input-padding-y;
     height: $input-height;
   }
 
@@ -141,6 +141,38 @@
           }
         }
       }
+
+      .select2-selection__choice {
+        background-color: $primary;
+        border-color: darken($primary, 5%);
+        color: color-yiq($primary);
+        padding: 0 10px;
+        margin-top: .31rem;
+      }
+
+      .select2-selection__choice__remove {
+        color: rgba(255, 255, 255, 0.7);
+        float: right;
+        margin-left: 5px;
+        margin-right: -2px;
+
+        &:hover {
+          color: $white;
+        }
+      }
+
+      .text-sm &,
+      &.text-sm {
+        .select2-search.select2-search--inline {
+          .select2-search__field {
+            margin-top: 8px;
+          }
+        }
+
+        .select2-selection__choice {
+          margin-top: .4rem;
+        }
+      }
     }
 
     &.select2-container--focus .select2-selection--multiple {
@@ -152,26 +184,6 @@
     }
   }
 
-  .select2-selection--multiple {
-    .select2-selection__choice {
-      background-color: $primary;
-      border-color: darken($primary, 5%);
-      color: color-yiq($primary);
-      padding: 0 10px;
-    }
-
-    .select2-selection__choice__remove {
-      color: rgba(255, 255, 255, 0.7);
-      float: right;
-      margin-left: 5px;
-      margin-right: -2px;
-
-      &:hover {
-        color: $white;
-      }
-    }
-  }
-
   & .select2-selection--single .select2-selection__rendered li {
     padding-right: 10px;
   }

dist/css/adminlte.css

@@ -19842,7 +19842,7 @@ html.maximized-card {
 
 .select2-container--default .select2-selection--single {
   border: 1px solid #ced4da;
-  padding: 6px 12px;
+  padding: 0.46875rem 0.375rem;
   height: calc(2.25rem + 2px);
 }
 
@@ -19950,19 +19950,12 @@ html.maximized-card {
   margin-top: 6px;
 }
 
-.select2-container--default.select2-container--focus .select2-selection--multiple {
-  border-color: #80bdff;
-}
-
-.select2-container--default.select2-container--focus .select2-selection--multiple .select2-search__field {
-  border: 0;
-}
-
 .select2-container--default .select2-selection--multiple .select2-selection__choice {
   background-color: #007bff;
   border-color: #006fe6;
   color: #ffffff;
   padding: 0 10px;
+  margin-top: .31rem;
 }
 
 .select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
@@ -19976,6 +19969,22 @@ html.maximized-card {
   color: #ffffff;
 }
 
+.text-sm .select2-container--default .select2-selection--multiple .select2-search.select2-search--inline .select2-search__field, .select2-container--default .select2-selection--multiple.text-sm .select2-search.select2-search--inline .select2-search__field {
+  margin-top: 8px;
+}
+
+.text-sm .select2-container--default .select2-selection--multiple .select2-selection__choice, .select2-container--default .select2-selection--multiple.text-sm .select2-selection__choice {
+  margin-top: .4rem;
+}
+
+.select2-container--default.select2-container--focus .select2-selection--multiple {
+  border-color: #80bdff;
+}
+
+.select2-container--default.select2-container--focus .select2-selection--multiple .select2-search__field {
+  border: 0;
+}
+
 .select2-container--default .select2-selection--single .select2-selection__rendered li {
   padding-right: 10px;
 }