Added missed css from ReadingIndicator

Author: EliasMasche

src/LinkDotNet.Blog.Web/wwwroot/css/blogpost.css

@@ -34,3 +34,48 @@
         width: 80%;
     }
 }
+
+.progress-container {
+	position: fixed;
+	bottom: 20px;
+	right: 20px;
+	z-index: 1000;
+	opacity: 0;
+	transition: opacity 1.5s;
+}
+
+	.progress-container.visible {
+		opacity: 1;
+	}
+
+@keyframes fadeOut {
+	to {
+		opacity: 0;
+	}
+}
+
+.progress-circle {
+	width: 50px;
+	height: 50px;
+}
+
+.progress-bg {
+	fill: none;
+	stroke: #f3f3f3;
+	stroke-width: 4;
+}
+
+.progress-bar {
+	fill: none;
+	stroke: #4caf50;
+	stroke-width: 4;
+	stroke-linecap: round;
+	transform-origin: center;
+	transform: rotate(-90deg);
+	stroke-dasharray: 100, 100;
+	stroke-dashoffset: 100;
+}
+
+[data-bs-theme='light'] .progress-bg {
+	stroke: #444444;
+}