Polymer elements added to third_party/polymer.

third_party/polymer/components/paper-shadow/paper-shadow.css

Index: third_party/polymer/components/paper-shadow/paper-shadow.css
diff --git a/third_party/polymer/components/paper-shadow/paper-shadow.css b/third_party/polymer/components/paper-shadow/paper-shadow.css
new file mode 100644
index 0000000000000000000000000000000000000000..e5cfec719ee7c14c73a103ac40a9693fff09e8f0
--- /dev/null
+++ b/third_party/polymer/components/paper-shadow/paper-shadow.css
@@ -0,0 +1,81 @@
+.paper-shadow {
+  position: absolute;
+  top: 0;
+  left: 0;
+  bottom: 0;
+  right: 0;
+  border-radius: inherit;
+  pointer-events: none;
+}
+
+.paper-shadow-animated.paper-shadow {
+  transition: box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.paper-shadow-top-z-1 {
+  box-shadow: 0 2px 10px 0 rgba(0, 0, 0, 0.16);
+}
+
+.paper-shadow-bottom-z-1 {
+  box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.26);
+}
+
+.paper-shadow-top-z-2 {
+  box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.19);
+}
+
+.paper-shadow-bottom-z-2 {
+  box-shadow: 0 8px 17px 0 rgba(0, 0, 0, 0.2);
+}
+
+.paper-shadow-top-z-3 {
+  box-shadow: 0 17px 50px 0 rgba(0, 0, 0, 0.19);
+}
+
+.paper-shadow-bottom-z-3 {
+  box-shadow: 0 12px 15px 0 rgba(0, 0, 0, 0.24);
+}
+
+.paper-shadow-top-z-4 {
+  box-shadow: 0 25px 55px 0 rgba(0, 0, 0, 0.21);
+}
+
+.paper-shadow-bottom-z-4 {
+  box-shadow: 0 16px 28px 0 rgba(0, 0, 0, 0.22);
+}
+
+.paper-shadow-top-z-5 {
+  box-shadow: 0 40px 77px 0 rgba(0, 0, 0, 0.22);
+}
+
+.paper-shadow-bottom-z-5 {
+  box-shadow: 0 27px 24px 0 rgba(0, 0, 0, 0.2);
+}
+
+.paper-shadow-animate-z-1-z-2.paper-shadow-top {
+  -webkit-transition: none;
+  -webkit-animation: animate-shadow-top-z-1-z-2 0.7s infinite alternate;
+}
+
+.paper-shadow-animate-z-1-z-2 .paper-shadow-bottom {
+  -webkit-transition: none;
+  -webkit-animation: animate-shadow-bottom-z-1-z-2 0.7s infinite alternate;
+}
+
+@-webkit-keyframes animate-shadow-top-z-1-z-2 {
+  0% {
+    box-shadow: 0 2px 10px 0 rgba(0, 0, 0, 0.16);
+  }
+  100% {
+    box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.19);
+  }
+}
+
+@-webkit-keyframes animate-shadow-bottom-z-1-z-2 {
+  0% {
+    box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.26);
+  }
+  100% {
+    box-shadow: 0 8px 17px 0 rgba(0, 0, 0, 0.2);
+  }
+}