Made the new interstitial layout more mobile-friendly

chrome/browser/resources/ssl/interstitial_v2.css

 /* Copyright 2014 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. */
 
 a {
   color: #585858;
 }
 
 body {
   background: rgb(247, 247, 247);
@@ skipping 13 matching lines @@
   box-sizing: border-box;
   color: #fff;
   cursor: pointer;
   float: right;
   font-size: .875em;
   height: 36px;
   margin: -6px 0 0;
   padding: 8px 24px;
 }
 
+[dir='rtl'] button {
+  float: left;
+}
+
 button:active {
   background: rgb(50, 102, 213);
 }
 
 button:hover {
   box-shadow: 0 1px 3px rgba(0, 0, 0, .50);
 }
 
 #details {
   color: #696969;
@@ skipping 57 matching lines @@
 
 .safe-browsing a {
   color: rgb(255, 255, 255);
 }
 
 .safe-browsing button {
   background: rgba(255, 255, 255, 0.15);
 }
 
 .safe-browsing .icon {
-  background: -webkit-image-set(
+  background-image: -webkit-image-set(
       url('../safe_browsing/images/1x/stop_sign.png') 1x,
       url('../safe_browsing/images/2x/stop_sign.png') 2x);
 }
 
 .ssl .icon {
-  background: -webkit-image-set(
+  background-image: -webkit-image-set(
       url('images/1x/brokenssl_red.png') 1x,
       url('images/2x/brokenssl_red.png') 2x);
 }
 
 @media (max-width: 700px) {
   .interstitial-wrapper {
-    padding: 0 10%;
+    padding: 0 15%;
   }
 }
+
+@media (max-width: 400px) {
+  button,
+  [dir='rtl'] button {
+    float: none;
+    height: auto;
+    width: 100%;
+  }
+
+  #details {
+    margin: 20px 0 20px 0;
+  }
+
+  #details p:not(:first-of-type) {
+    margin-top: 10px;
+  }
+
+  #details-button {
+    display: block;
+    padding-top: 10px;
+    text-align: center;
+    width: 100%;
+  }
+
+  h1 {
+    line-height: normal;
+  }
+
+  .icon {
+    background-size: 40px 40px;
+    height: 40px;
+    margin: 0 0 20px;
+    width: 40px;
+  }
+
+  .interstitial-wrapper {
+    padding: 0 5%;
+  }
+
+  #main-message {
+    height: 160px;
+  }
+}