adjust class

src/client/js/components/BookmarkButton.jsx

@@ -64,7 +64,7 @@ class BookmarkButton extends React.Component {
         href="#"
         title="Bookmark"
         onClick={this.handleClick}
-        className={`btn btn-circle btn-outline-warning btn-bookmark border-0 ${`btn-${this.props.size}`} ${this.state.isBookmarked && 'active'}`}
+        className={`btn rounded-circle btn-outline-warning btn-bookmark border-0 ${`btn-${this.props.size}`} ${this.state.isBookmarked && 'active'}`}
       >
         <i className="icon-star"></i>
       </button>

src/client/js/components/LikeButton.jsx

@@ -43,7 +43,7 @@ class LikeButton extends React.Component {
       <button
         type="button"
         onClick={this.handleClick}
-        className={`btn btn-circle btn-outline-info btn-like border-0 ${this.state.isLiked ? 'active' : ''}`}
+        className={`btn rounded-circle btn-outline-info btn-like border-0 ${this.state.isLiked ? 'active' : ''}`}
       >
         <i className="icon-like"></i>
       </button>