diff --git a/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog.html b/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog.html
index ffc1b9b..1d6e706 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog.html
@@ -43,11 +43,6 @@
       .value {
         width: 32em;
       }
-      gr-autocomplete {
-        --gr-autocomplete: {
-          padding: 0 var(--spacing-xs);
-        }
-      }
       .hide {
         display: none;
       }
diff --git a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.html b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.html
index 8d03595..b78090c 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.html
@@ -40,14 +40,7 @@
         width: 20em;
       }
       gr-autocomplete {
-        border: none;
-        --gr-autocomplete: {
-          border: 1px solid var(--border-color);
-          border-radius: var(--border-radius);
-          height: 2em;
-          padding: 0 var(--spacing-xs);
-          width: 20em;
-        }
+        width: 20em;
       }
     </style>
 
diff --git a/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members.html b/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members.html
index bc7a109..cf24793 100644
--- a/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members.html
+++ b/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members.html
@@ -48,10 +48,6 @@
       }
       gr-autocomplete {
         width: 20em;
-        --gr-autocomplete: {
-          height: 2em;
-          width: 20em;
-        }
       }
       a {
         color: var(--primary-text-color);
diff --git a/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar.html b/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar.html
index 0cdef8c..1b57ddb 100644
--- a/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar.html
+++ b/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar.html
@@ -29,11 +29,9 @@
       }
       gr-autocomplete {
         background-color: var(--view-background-color);
-        border: 1px solid var(--border-color);
         border-radius: var(--border-radius);
         flex: 1;
         outline: none;
-        padding: var(--spacing-xs);
       }
     </style>
     <form>
@@ -45,7 +43,6 @@
           on-commit="_handleInputCommit"
           allow-non-suggested-values
           multi
-          borderless
           threshold="[[_threshold]]"
           tab-complete
           vertical-offset="30"></gr-autocomplete>
diff --git a/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls.html b/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls.html
index 4b9fbac..cb950da 100644
--- a/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls.html
+++ b/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls.html
@@ -55,21 +55,13 @@
       gr-dialog .main > iron-input{
         width: 100%;
       }
-      gr-autocomplete {
-        --gr-autocomplete: {
-          border: 1px solid var(--border-color);
-          border-radius: var(--border-radius);
-          height: 2em;
-          padding: 0 var(--spacing-xs);
-        }
-      }
       input {
         border: 1px solid var(--border-color);
         border-radius: var(--border-radius);
-        height: 2em;
         margin: var(--spacing-m) 0;
-        padding: 0 var(--spacing-xs);
+        padding: var(--spacing-s);
         width: 100%;
+        box-sizing: content-box;
       }
       @media screen and (max-width: 50em) {
         gr-dialog {
diff --git a/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry.html b/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry.html
index ae656fd..992ea8407 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry.html
@@ -40,7 +40,8 @@
         on-commit="_handleInputCommit"
         clear-on-commit
         warn-uncommitted
-        text="{{_inputText}}">
+        text="{{_inputText}}"
+        vertical-offset="24">
     </gr-autocomplete>
   </template>
   <script src="gr-account-entry.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.html b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.html
index 64950f2..cf32e28 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.html
@@ -60,6 +60,7 @@
       .dropdown-content {
         background: var(--dropdown-background-color);
         box-shadow: rgba(0, 0, 0, 0.3) 0 1px 3px;
+        border-radius: var(--border-radius);
         max-height: 50vh;
         overflow: auto;
       }
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
index c9d12ce..e47b661 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
@@ -36,13 +36,14 @@
         margin: 0 var(--spacing-xs);
         vertical-align: top;
       }
-      paper-input:not(.borderless) {
-        border: 1px solid var(--border-color);
+      paper-input.borderless {
+        border: none;
+        padding: 0;
       }
       paper-input {
-        height: var(--line-height-normal);
-        width: 100%;
-        @apply --gr-autocomplete;
+        border: 1px solid var(--border-color);
+        border-radius: var(--border-radius);
+        padding: var(--spacing-s);
         --paper-input-container: {
           padding: 0;
         };
@@ -50,13 +51,25 @@
           font-size: var(--font-size-normal);
           line-height: var(--line-height-normal);
         };
+        /* This is a hack for not being able to set height:0 on the underline
+           of a paper-input 2.2.3 element. All the underline fixes below only
+           actually work in 3.x.x, so the height must be adjusted directly as
+           a workaround until we are on Polymer 3. */
+        height: var(--line-height-normal);
+        --paper-input-container-underline-height: 0;
+        --paper-input-container-underline-wrapper-height: 0;
+        --paper-input-container-underline-focus-height: 0;
+        --paper-input-container-underline-legacy-height: 0;
         --paper-input-container-underline: {
+          height: 0;
           display: none;
         };
         --paper-input-container-underline-focus: {
+          height: 0;
           display: none;
         };
         --paper-input-container-underline-disabled: {
+          height: 0;
           display: none;
         };
       }
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.js b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.js
index a2c908a..3a60255 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.js
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.js
@@ -74,9 +74,9 @@
         },
 
         /**
-       * The number of characters that must be typed before suggestions are
-       * made. If threshold is zero, default suggestions are enabled.
-       */
+         * The number of characters that must be typed before suggestions are
+         * made. If threshold is zero, default suggestions are enabled.
+         */
         threshold: {
           type: Number,
           value: 1,
@@ -89,11 +89,15 @@
           type: Boolean,
           value: false,
         },
-        // Vertical offset needed for a 1em font-size with no vertical padding.
-        // Inputs with additional padding will need to increase vertical offset.
+        /**
+         * Vertical offset needed for an element with 20px line-height, 4px
+         * padding and 1px border (30px height total). Plus 1px spacing between
+         * input and dropdown. Inputs with different line-height or padding will
+         * need to tweak vertical offset.
+         */
         verticalOffset: {
           type: Number,
-          value: 20,
+          value: 31,
         },
 
         text: {
@@ -110,10 +114,10 @@
         },
 
         /**
-       * When true, tab key autocompletes but does not fire the commit event.
-       * When false, tab key not caught, and focus is removed from the element.
-       * See Issue 4556, Issue 6645.
-       */
+         * When true, tab key autocompletes but does not fire the commit event.
+         * When false, tab key not caught, and focus is removed from the element.
+         * See Issue 4556, Issue 6645.
+         */
         tabComplete: {
           type: Boolean,
           value: false,
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
index 68338a4..39329e5 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
@@ -335,7 +335,7 @@
     });
 
     test('vertical offset overridden by param if it exists', () => {
-      assert.equal(element.$.suggestions.verticalOffset, 20);
+      assert.equal(element.$.suggestions.verticalOffset, 31);
       element.verticalOffset = 30;
       assert.equal(element.$.suggestions.verticalOffset, 30);
     });
diff --git a/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete.html b/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete.html
index da0b93f..47be6f7 100644
--- a/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete.html
+++ b/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete.html
@@ -38,14 +38,7 @@
       #body {
         display: flex;
       }
-      gr-autocomplete {
-        height: 1.5em;
-        --gr-autocomplete: {
-          border: none;
-        }
-      }
       #trigger {
-        border-left: 1px solid var(--deemphasized-text-color);
         color: var(--deemphasized-text-color);
         cursor: pointer;
         padding-left: var(--spacing-s);
diff --git a/polygerrit-ui/app/styles/gr-form-styles.html b/polygerrit-ui/app/styles/gr-form-styles.html
index 3fe0a72..7c9ae0d 100644
--- a/polygerrit-ui/app/styles/gr-form-styles.html
+++ b/polygerrit-ui/app/styles/gr-form-styles.html
@@ -61,7 +61,6 @@
       }
       .gr-form-styles td,
       .gr-form-styles tfoot th {
-        height: 2em;
         padding: var(--spacing-s) 0;
         vertical-align: middle;
       }
@@ -84,8 +83,7 @@
       .gr-form-styles textarea {
         border: 1px solid var(--border-color);
         border-radius: var(--border-radius);
-        height: 2em;
-        padding: 0 var(--spacing-xs);
+        padding: var(--spacing-s);
       }
       .gr-form-styles td:last-child {
         width: 5em;
@@ -97,23 +95,16 @@
       .gr-form-styles iron-autogrow-textarea {
         border: none;
         height: auto;
-        min-height: 2em;
+        min-height: 4em;
         --iron-autogrow-textarea: {
           border: 1px solid var(--border-color);
           border-radius: var(--border-radius);
           box-sizing: border-box;
-          padding: var(--spacing-s) var(--spacing-xs) 0 var(--spacing-xs);
+          padding: var(--spacing-s);
         }
       }
       .gr-form-styles gr-autocomplete {
-        border: none;
-        --gr-autocomplete: {
-          border: 1px solid var(--border-color);
-          border-radius: var(--border-radius);
-          height: 2em;
-          padding: 0 var(--spacing-xs);
-          width: 14em;
-        }
+        width: 14em;
       }
       @media only screen and (max-width: 40em) {
         .gr-form-styles section {
diff --git a/polygerrit-ui/app/styles/shared-styles.html b/polygerrit-ui/app/styles/shared-styles.html
index 5314741..51b92e1 100644
--- a/polygerrit-ui/app/styles/shared-styles.html
+++ b/polygerrit-ui/app/styles/shared-styles.html
@@ -42,10 +42,11 @@
       input {
         background-color: inherit;
         border: 1px solid var(--border-color);
+        border-radius: var(--border-radius);
         box-sizing: border-box;
         color: var(--primary-text-color);
         margin: 0;
-        padding: 0;
+        padding: var(--spacing-s);
       }
       iron-autogrow-textarea {
         background-color: inherit;