prevent slide control btn from changing shape

bigbluebutton-html5/imports/ui/components/presentation/presentation-toolbar/component.jsx

@@ -193,7 +193,7 @@ class PresentationToolbar extends Component {
           aria-relevant="all"
           value={currentSlideNum}
           onChange={actions.skipToSlideHandler}
-          className={styles.skipSlide}
+          className={styles.skipSlideSelect}
         >
           {this.renderSkipSlideOpts(numberOfSlides)}
         </select>
@@ -208,6 +208,7 @@ class PresentationToolbar extends Component {
           onClick={actions.nextSlideHandler}
           label={intl.formatMessage(intlMessages.nextSlideLabel)}
           hideLabel
+          className={styles.skipSlide}
         />
 
         {/* Fit to width button

bigbluebutton-html5/imports/ui/components/presentation/presentation-toolbar/styles.scss

@@ -33,7 +33,7 @@ $controls-background: #F0F2F6 !default;
     background-color: $controls-background;
     color: $controls-color;
     border-top: 0;
-    border-right: $color-gray-light 2px solid;
+    border-right: $color-gray-light $border-size solid;
     border-bottom: 0;
     border-left: 0;
     border-radius: 0;
@@ -58,12 +58,14 @@ $controls-background: #F0F2F6 !default;
   border-right: 0 !important;
 }
 
+.skipSlide,
 .prevSlide {
-  border-radius: 5px 0 0 5px;
+  border: none !important;
 }
 
-.skipSlide {
+.skipSlideSelect {
   padding: 0 0.8%;
+  border-left: $border-size solid $color-gray-light !important;
 }
 
 .zoomSlider {