Improve comment tree UI

client/src/app/videos/+video-watch/comment/video-comment-add.component.scss

@@ -10,10 +10,10 @@ form {
   margin-bottom: 10px;
 
   img {
-    @include avatar(36px);
+    @include avatar(25px);
 
     vertical-align: top;
-    margin-right: 20px;
+    margin-right: 10px;
   }
 
   .form-group {
@@ -40,10 +40,14 @@ form {
   }
 }
 
-@media screen and (max-width: 450px) {
+@media screen and (max-width: 600px) {
   textarea, .submit-comment button {
     font-size: 14px !important;
   }
+
+  textarea {
+    padding: 5px !important;
+  }
 }
 
 .modal-body {

client/src/app/videos/+video-watch/comment/video-comment.component.html

@@ -1,4 +1,5 @@
 <div class="root-comment">
+  <div class="left">
     <img
       *ngIf="!comment.isDeleted"
       class="comment-avatar"
@@ -6,10 +7,11 @@
       alt="Avatar"
     />
 
-  <span
-    *ngIf="comment.isDeleted"
-    class="comment-avatar"
-  ></span>
+    <div class="vertical-border"></div>
+  </div>
+
+  <div class="right">
+    <span *ngIf="comment.isDeleted" class="comment-avatar"></span>
 
     <div class="comment">
       <ng-container *ngIf="!comment.isDeleted">
@@ -17,7 +19,8 @@
 
         <div class="comment-account-date">
           <a [href]="comment.account.url" target="_blank" rel="noopener noreferrer" class="comment-account">{{ comment.by }}</a>
-        <a [routerLink]="['/videos/watch', video.uuid, { 'threadId': comment.threadId }]" class="comment-date">{{ comment.createdAt | myFromNow }}</a>
+          <a [routerLink]="['/videos/watch', video.uuid, { 'threadId': comment.threadId }]"
+             class="comment-date">{{ comment.createdAt | myFromNow }}</a>
         </div>
         <div class="comment-html" [innerHTML]="sanitizedCommentHTML"></div>
 
@@ -30,7 +33,8 @@
       <ng-container *ngIf="comment.isDeleted">
         <div class="comment-account-date">
           <span class="comment-account" i18n>Deleted</span>
-        <a [routerLink]="['/videos/watch', video.uuid, { 'threadId': comment.threadId }]" class="comment-date">{{ comment.createdAt | myFromNow }}</a>
+          <a [routerLink]="['/videos/watch', video.uuid, { 'threadId': comment.threadId }]"
+             class="comment-date">{{ comment.createdAt | myFromNow }}</a>
         </div>
 
         <div *ngIf="comment.isDeleted" class="comment-html comment-html-deleted">
@@ -64,3 +68,4 @@
       </div>
     </div>
   </div>
+</div>

client/src/app/videos/+video-watch/comment/video-comment.component.scss

@@ -5,11 +5,24 @@
   font-size: 15px;
   display: flex;
 
+  .left {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    margin-right: 10px;
+
+    .vertical-border {
+      width: 2px;
+      height: 100%;
+      background-color: rgba(0, 0, 0, 0.05);
+      margin: 10px 0;
+    }
+  }
+
   .comment-avatar {
     @include avatar(36px);
 
     margin-top: 5px;
-    margin-right: 20px;
   }
 
   .comment {
@@ -84,33 +97,47 @@
       }
     }
   }
+
+  .children {
+    // Reduce avatars size for replies
+    .comment-avatar {
+      @include avatar(25px);
     }
 
-// Decrease the space of child comments on small screens
-@media screen and (max-width: 1600px) {
-  .children {
-    margin-left: -20px;
+    .left {
+      margin-right: 6px;
+    }
   }
 }
 
 @media screen and (max-width: 1200px) {
   .children {
-    margin-left: -30px;
+    margin-left: -10px;
   }
 }
 
 @media screen and (max-width: 600px) {
+  .root-comment {
     .children {
-    margin-left: -35px;
-  }
+      margin-left: -20px;
 
-  .root-comment {
-    .comment-avatar { margin-right: 10px; }
+      .left {
+        align-items: flex-start;
+
+        .vertical-border {
+          margin-left: 2px;
+        }
       }
     }
 
-@media screen and (max-width: 450px) {
-  .root-comment {
-    font-size: 14px;
+    .comment {
+      .comment-account-date {
+        flex-direction: column;
+
+        .comment-date {
+          margin-left: 0;
+        }
+      }
+    }
   }
 }

client/src/app/videos/+video-watch/comment/video-comments.component.scss

@@ -9,7 +9,7 @@
   font-weight: $font-semibold;
   font-size: 15px;
   cursor: pointer;
-  margin-left: 56px;
+  margin-left: 46px;
   margin-bottom: 10px;
 }
 

client/src/sass/include/_mixins.scss

@@ -44,7 +44,7 @@
 }
 
 @mixin peertube-word-wrap {
-  word-break: normal;
+  word-break: break-word;
   word-wrap: break-word;
   overflow-wrap: break-word;
   -webkit-hyphens: auto;
@@ -397,6 +397,7 @@
   width: $size;
   height: $size;
   min-width: $size;
+  min-height: $size;
 }
 
 @mixin chevron ($size, $border-width) {