position .ci-action-icon-wrapper svg 0.5px higher

app/assets/javascripts/pipelines/components/graph/action_component.vue

@@ -88,7 +88,7 @@ export default {
     :title="tooltipText"
     :class="cssClass"
     :disabled="isDisabled"
-    class="js-ci-action btn btn-blank btn-transparent ci-action-icon-container ci-action-icon-wrapper"
+    class="js-ci-action btn btn-blank btn-transparent ci-action-icon-container ci-action-icon-wrapper d-flex align-items-center justify-content-center"
     @click="onClickAction"
   >
     <gl-loading-icon v-if="isLoading" class="js-action-icon-loading" />

app/assets/stylesheets/pages/pipelines.scss

@@ -871,7 +871,7 @@ button.mini-pipeline-graph-dropdown-toggle {
         height: $ci-action-dropdown-svg-size;
         fill: $gl-text-color-secondary;
         position: relative;
-        top: 1px;
+        top: auto;
         vertical-align: initial;
       }
     }