diff --git a/rendering/cases/linestring-style-opacity/expected.png b/rendering/cases/linestring-style-opacity/expected.png
new file mode 100644
index 0000000000..18af8ebc78
Binary files /dev/null and b/rendering/cases/linestring-style-opacity/expected.png differ
diff --git a/rendering/cases/linestring-style-opacity/main.js b/rendering/cases/linestring-style-opacity/main.js
new file mode 100644
index 0000000000..e663640825
--- /dev/null
+++ b/rendering/cases/linestring-style-opacity/main.js
@@ -0,0 +1,70 @@
+import Map from '../../../src/ol/CompositeMap.js';
+import View from '../../../src/ol/View.js';
+import Feature from '../../../src/ol/Feature.js';
+import LineString from '../../../src/ol/geom/LineString.js';
+import VectorLayer from '../../../src/ol/layer/Vector.js';
+import VectorSource from '../../../src/ol/source/Vector.js';
+import Style from '../../../src/ol/style/Style.js';
+import Stroke from '../../../src/ol/style/Stroke.js';
+
+
+const vectorSource = new VectorSource();
+let feature;
+
+feature = new Feature({
+  geometry: new LineString([[-60, 60], [45, 60]])
+});
+vectorSource.addFeature(feature);
+
+feature = new Feature({
+  geometry: new LineString([[-60, -50], [30, 10]])
+});
+feature.setStyle(new Style({
+  stroke: new Stroke({color: '#f00', width: 3})
+}));
+vectorSource.addFeature(feature);
+
+feature = new Feature({
+  geometry: new LineString([[-110, -100], [0, 100], [100, -90]])
+});
+feature.setStyle(new Style({
+  stroke: new Stroke({
+    color: 'rgba(55, 55, 55, 0.75)',
+    width: 5,
+    lineCap: 'square',
+    lineDash: [4, 8],
+    lineJoin: 'round'
+  })
+}));
+vectorSource.addFeature(feature);
+
+feature = new Feature({
+  geometry: new LineString([[-80, 80], [80, 80], [-40, -90]])
+});
+feature.setStyle([
+  new Style({
+    stroke: new Stroke({color: '#F2F211', width: 5})
+  }),
+  new Style({
+    stroke: new Stroke({color: '#292921', width: 1})
+  })
+]);
+vectorSource.addFeature(feature);
+
+
+new Map({
+  pixelRatio: 1,
+  layers: [
+    new VectorLayer({
+      opacity: 0.5,
+      source: vectorSource
+    })
+  ],
+  target: 'map',
+  view: new View({
+    center: [0, 0],
+    resolution: 1
+  })
+});
+
+render();
diff --git a/src/ol/renderer/Composite.js b/src/ol/renderer/Composite.js
index 6cbe9c586a..f1a6686131 100644
--- a/src/ol/renderer/Composite.js
+++ b/src/ol/renderer/Composite.js
@@ -99,7 +99,10 @@ class CompositeMapRenderer extends MapRenderer {
       const layerRenderer = this.getLayerRenderer(layer);
       if (layerRenderer.prepareFrame(frameState, layerState)) {
         const element = layerRenderer.renderFrame(frameState, layerState);
-        // TODO: deal with opacity
+        const opacity = layerState.opacity;
+        if (opacity !== element.style.opacity) {
+          element.style.opacity = opacity;
+        }
         this.children_.push(element);
       }
     }