diff --git a/projects/arlas-components/assets/styles.css b/projects/arlas-components/assets/styles.css
index 6fb7b653..4edf97d5 100644
--- a/projects/arlas-components/assets/styles.css
+++ b/projects/arlas-components/assets/styles.css
@@ -39,11 +39,6 @@ body {
 .constructors .powerbar__powerbar--progression--neutral-state, .constructors .powerbar__powerbar--progression--selected-bar {
 }
 
-/* TODO: still used ? */
-.histogram__area .histogram__swimlane-height--tick {
-  stroke: black;
-}
-
 .one_dimension .histogram__axis {
   stroke: white;
 }
diff --git a/projects/arlas-components/src/lib/components/powerbars/powerbars.component.css b/projects/arlas-components/src/lib/components/powerbars/powerbars.component.css
index fbb54eca..7cfafd27 100644
--- a/projects/arlas-components/src/lib/components/powerbars/powerbars.component.css
+++ b/projects/arlas-components/src/lib/components/powerbars/powerbars.component.css
@@ -42,7 +42,6 @@
 
 }
 
-/* TODO: currently only placeholder but on demo label -> why ? */
 .powerbars--search .mat-mdc-form-field {
   width: 100%;
 }
diff --git a/projects/arlas-components/src/lib/components/results/result-list/result-list.component.html b/projects/arlas-components/src/lib/components/results/result-list/result-list.component.html
index 02fcd018..376d8378 100644
--- a/projects/arlas-components/src/lib/components/results/result-list/result-list.component.html
+++ b/projects/arlas-components/src/lib/components/results/result-list/result-list.component.html
@@ -49,7 +49,6 @@
                   {{lastSortedColumn.columnName | translate}} - {{(SortEnum[sortedColumn.sortDirection] | uppercase) + '_short' | translate}}
                 </span>
               </mat-select-trigger>
-              <!-- TODO: find better sort descriptor than '- -' -->
               <mat-option [value]="" class="resultlist__tools--sort-option"> - - </mat-option>
               <mat-optgroup [label]="'Column' | translate" class="resultlist__tools--sort-group">
                 <ng-container *ngFor="let column of columns">
diff --git a/src/styles.css b/src/styles.css
index 7f19bfb6..654c07df 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -39,10 +39,6 @@ body {
 .constructors .powerbar__powerbar--progression--neutral-state, .constructors .powerbar__powerbar--progression--selected-bar {
 }
 
-.histogram__area .histogram__swimlane-height--tick {
-  stroke: black;
-}
-
 .one_dimension .histogram__axis {
   stroke: white;
 }