chore: remove unneeded CSS vendor prefixes

less/common/Dropdown.less

@@ -24,7 +24,9 @@
   }
 
   > li {
-    > a, > button, > span {
+    > a,
+    > button,
+    > span {
       padding: 8px 15px;
       display: block;
       width: 100%;
@@ -59,13 +61,15 @@
         background: none !important;
       }
     }
-    > a, > button {
+    > a,
+    > button {
       &:hover {
         background: var(--control-bg);
       }
     }
     &.active {
-      > a, > button {
+      > a,
+      > button {
         background: var(--control-bg);
       }
     }
@@ -100,7 +104,6 @@
   height: 1px;
 }
 
-
 .dropdown-backdrop {
   position: fixed;
   left: 0;
@@ -110,7 +113,6 @@
   z-index: calc(~"var(--zindex-dropdown) - 10");
 }
 
-
 .Dropdown--split {
   .Dropdown-toggle .Button-icon {
     display: none;
@@ -131,7 +133,8 @@
 
   @media @tablet-up {
     .Dropdown-menu li:first-child {
-      &, + li.Dropdown-separator {
+      &,
+      + li.Dropdown-separator {
         display: none;
       }
     }
@@ -156,7 +159,6 @@
   }
 }
 
-
 @media @phone {
   .Dropdown.open {
     z-index: var(--zindex-modal);
@@ -177,12 +179,12 @@
     box-shadow: 0 2px 6px var(--shadow-color);
     visibility: hidden;
     overflow: auto;
-    -webkit-overflow-scrolling: touch;
     transform: translate(0, 70vh);
     transition: transform 0.3s, visibility 0s 0.3s;
 
     > li {
-      > a, > button {
+      > a,
+      > button {
         background: var(--body-bg);
         font-size: 16px;
         padding: 15px 20px;
@@ -200,16 +202,17 @@
       }
     }
     > .active {
-      > a, > button {
-        &, &:hover {
+      > a,
+      > button {
+        &,
+        &:hover {
           background: var(--primary-color) !important;
           color: #fff !important;
         }
       }
     }
     .open& {
-      -webkit-transform: none;
-              transform: none;
+      transform: none;
       visibility: visible;
       transition-delay: 0s;
     }