CSS cosmetics

slides.json

             "params": {
                 "theme": "sky",
                 "background-image": "static/img/valley-1.svg",
-                "background-opacity": "0.5",
+                "background-opacity": "0.25",
                 "background-position": "top left"
             },
             "markdown": "This is my **farewell ceremony**.\n\nI [love](https://en.wikipedia.org/wiki/Love) you all."
             "params": {
                 "theme": "solarized",
                 "background-image": "static/img/valley-1.svg",
-                "background-opacity": "0.5"
+                "background-opacity": "0.25"
             },
             "markdown": "I've done many things. Some of them I'm proud of:",
             "slides": [
                     "title": "My work",
                     "params": {
                         "background-image": "static/img/valley-1.svg",
-                        "background-opacity": "0.5"
+                        "background-opacity": "0.25"
                     },
                     "markdown": "### I've worked like a horse.\n\n![A horse (of course)|w-50 centered](static/img/horse.png)"
                 },
                         "background-position": "center middle",
                         "background-size": "contain"
                     },
-                    "markdown": "#### I've rested like a cat.\n\n![A cat resting|w-50 centered](static/img/cat-resting.png)"
+                    "markdown": "#### I've rested like a cat.\n\n![A cat resting|w-66 centered](static/img/cat-resting.png)"
                 }
             ]
         },
             "params": {
                 "theme": "league",
                 "background-image": "static/img/particles-1.svg",
-                "background-opacity": "0.5"
+                "background-opacity": "0.25"
             },
             "markdown": "I've made many mistakes.\n\nI hope you can forgive me:",
             "slides": [

static/css/style.css

 }
 
 .w-66 {
-	width: 33%;
+	width: 66%;
 }
 
 .w-33 {