Add upstream

wp-content/plugins/jetpack/modules/infinite-scroll/infinity.css

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+/* =Infinity Styles
+-------------------------------------------------------------- */
+
+.infinite-wrap {
+}
+.infinite-loader {
+	color: #000;
+	display: block;
+	height: 28px;
+	text-indent: -9999px;
+}
+#infinite-handle span {
+	background: #333;
+	border-radius: 1px;
+	color: #eee;
+	cursor: pointer;
+	font-size: 13px;
+	padding: 6px 16px;
+}
+
+/**
+ * Using a highly-specific rule to make sure that all button styles
+ * will be reset
+ */
+#infinite-handle span button,
+#infinite-handle span button:hover,
+#infinite-handle span button:focus {
+	display: inline;
+	position: static;
+	padding: 0;
+	margin: 0;
+	border: none;
+	line-height: inherit;
+	background: transparent;
+	color: inherit;
+	cursor: inherit;
+	font-size: inherit;
+	font-weight: inherit;
+	font-family: inherit;
+}
+
+/**
+ * This is used to avoid unnecessary inner button spacing in Firefox
+ */
+#infinite-handle span button::-moz-focus-inner {
+	margin: 0;
+	padding: 0;
+	border: none;
+}
+
+/**
+ * For smaller viewports, remove the down-arrow icon and turn
+ * the button into a block element, spanning the content's full width.
+ */
+@media (max-width: 800px) {
+	#infinite-handle span:before {
+		display: none;
+	}
+	#infinite-handle span {
+		display: block;
+	}
+}
+
+/**
+ * Footer
+ */
+#infinite-footer {
+	position: fixed;
+		bottom: -50px;
+		left: 0;
+	width: 100%;
+}
+#infinite-footer a {
+	text-decoration: none;
+}
+#infinite-footer .blog-info a:hover,
+#infinite-footer .blog-credits a:hover {
+	color: #444;
+	text-decoration: underline;
+}
+#infinite-footer .container {
+	background: rgba( 255, 255, 255, 0.8 );
+	border-color: #ccc;
+	border-color: rgba( 0, 0, 0, 0.1 );
+	border-style: solid;
+	border-width: 1px 0 0;
+	-moz-box-sizing: border-box;
+	box-sizing: border-box;
+	margin: 0 auto;
+	overflow: hidden;
+	padding: 1px 20px;
+	width: 780px;
+}
+#infinite-footer .blog-info,
+#infinite-footer .blog-credits {
+	-moz-box-sizing: border-box;
+	-webkit-box-sizing: border-box;
+	box-sizing: border-box;
+	line-height: 25px;
+}
+#infinite-footer .blog-info {
+	float: left;
+	overflow: hidden;
+	text-align: left;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	width: 40%;
+}
+#infinite-footer .blog-credits {
+	font-weight: normal;
+	float: right;
+	width: 60%;
+}
+#infinite-footer .blog-info a {
+	color: #111;
+	font-size: 14px;
+	font-weight: bold;
+}
+#infinite-footer .blog-credits {
+	color: #888;
+	font-size: 12px;
+	text-align: right;
+}
+#infinite-footer .blog-credits a {
+	color: #666;
+}
+
+/**
+ * Hooks to infinity-end body class to restore footer
+ */
+.infinity-end.neverending #infinite-footer {
+	display: none;
+}
+
+/**
+ * Responsive structure for the footer
+ */
+@media (max-width: 640px) {
+	#infinite-footer .container {
+		-moz-box-sizing: border-box;
+		-webkit-box-sizing: border-box;
+		box-sizing: border-box;
+		width: 100%;
+	}
+	#infinite-footer .blog-info {
+		width: 30%;
+	}
+	#infinite-footer .blog-credits {
+		width: 70%;
+	}
+	#infinite-footer .blog-info a,
+	#infinite-footer .blog-credits {
+		font-size: 10px;
+	}
+}
+
+/**
+ * No fixed footer on small viewports
+ */
+@media ( max-width: 640px ) {
+	#infinite-footer {
+		position: static;
+	}
+}