MD Downloads: update basic cards

ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css

 /* Copyright 2015 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 :host {
   display: inline-block;
   vertical-align: middle;
 }
 
 :host([disabled]) {
   pointer-events: none;
 }
 
 paper-button[toggles][active] {
   background-color: lightgrey;
 }
 
 paper-button {
   margin: 0;
+  --paper-button: {
+    min-width: auto;
+  };
 }
+
+:host([lowercase]) paper-button {
+  --paper-button: {
+    min-width: auto;  /* HACK(dbeam): mixins can't be redefined. */

[michaelpg, 2015/08/18 19:47:06]

why is this a hack, and is it something you intend to fix?

If your concern is having to redefine the min-width property... I think it's
intuitive for mixin styles to "cascade", but that's just my opinion; more
importantly, it'll be annoying to have to /* HACK */ every time we do this.

[Dan Beam, 2015/08/18 19:51:12]

paper-button {
  margin: 0;
  --paper-button: {
    min-width: auto;
  };
}

:host([lowercase]) paper-button {
  --paper-button: {
    text-transform: none;
  };
}

should work, IMO, because keys never clash and it's a mixin
yes, when/if CSS vars work [like this] in Chrome
Acknowledged.

+    text-transform: none;
+  };
+}