Improved overall styling

src/App.tsx

@@ -3,6 +3,7 @@ import { WorkoutPlot } from './components/WorkoutPlot';
 import { WorkoutStats } from './components/WorkoutStats';
 import { parse, chunkRangeIntervals, Duration } from 'make-workout';
 import { ErrorMessage } from './components/ErrorMessage';
+import styled from 'styled-components';
 
 const defaultWorkout = `Name: Hello
 
@@ -14,6 +15,15 @@ FreeRide: 10:00
 Cooldown: 10:00 60%..30%
 `;
 
+const AppContainer = styled.div`
+  max-width: 800px;
+  margin: 0 auto;
+`;
+
+const AppTitle = styled.h1`
+  font-weight: normal;
+`;
+
 // Split range-intervals into 1 minute chunks
 const chunkSize = new Duration(60);
 
@@ -34,12 +44,12 @@ export function App() {
   }, [setText, setWorkout, setError]);
   
   return (
-    <div>
+    <AppContainer>
-      <h1>Workout editor</h1>
+      <AppTitle>Workout editor</AppTitle>
       <textarea rows={10} cols={100} onChange={onChange} value={text} />
       <WorkoutPlot intervals={chunkRangeIntervals(workout.intervals, chunkSize)} />
       {error && <ErrorMessage>{error}</ErrorMessage>}
       <WorkoutStats workout={workout} />
-    </div>
+    </AppContainer>
   );
 }

src/components/WorkoutPlot.tsx

@@ -12,9 +12,7 @@ const toBarProps = (interval: Interval, workoutDuration: Duration, maxIntensity:
 const Plot = styled.div`
   white-space: nowrap;
   overflow: hidden;
-  width: 800px;
   height: 200px;
-  background: rgba(0,0,0, 0.03);
   border-radius: 5px;
   padding: 5px;
   margin: 10px 0;

src/components/WorkoutStats.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import { stats, Workout, Intensity } from 'make-workout';
 import { formatDuration } from './formatDuration';
+import styled from 'styled-components';
 
 const formatIntensity = (intensity: Intensity): string => `${Math.round(intensity.value * 100)}%`;
 
@@ -8,22 +9,53 @@ const StatsLine: React.FC<{ label: string, value: string | number }> = ({ label,
   <li><strong>{label}</strong> {value}</li>
 );
 
+const Container = styled.div`
+  display: grid;
+  grid-template-columns: 1fr 3fr;
+  border: 1px solid #bbb;
+  border-radius: 10px;
+  padding: 10px;
+  font-size: 12px;
+  background: rgba(255, 255, 255, 0.6);
+`;
+const Section = styled.section``;
+
+const Header = styled.h2`
+  margin: 0;
+  font-size: 14px;
+  font-weight: normal;
+`;
+const List = styled.ul`
+  margin: 1m 0;
+  padding: 0;
+  list-style: none;
+`;
+const ZoneList = styled(List)`
+  display: grid;
+  grid-template-columns: 1fr 1fr 1fr;
+`;
+
+
 export const WorkoutStats: React.FC<{workout: Workout}> = ({ workout }) => {
   const {totalDuration, averageIntensity, normalizedIntensity, tss, zones} = stats(workout);
   
   return (
-    <div>
+    <Container>
-      <h2>Summary</h2>
+      <Section>
-      <ul>
+        <Header>Summary</Header>
+        <List>
           <StatsLine label="Duration:" value={formatDuration(totalDuration)} />
           <StatsLine label="Average intensity:" value={formatIntensity(averageIntensity)} />
           <StatsLine label="Normalized intensity:" value={formatIntensity(normalizedIntensity)} />
           <StatsLine label="TSS:" value={Math.round(tss)} />
-      </ul>
+        </List>
-      <h2>Zone distribution</h2>
+      </Section>
-      <ul>
+      <Section>
+        <Header>Zone distribution</Header>
+        <ZoneList>
           {zones.map(zone => (<StatsLine label={zone.name} value={formatDuration(zone.duration)} />)) }
-      </ul>
+        </ZoneList>
-    </div>
+      </Section>
+    </Container>
   )
 };

src/index.css

@@ -1,7 +1,7 @@
 body {
   margin: 0;
   padding: 40px;
-  background-color: #f5f5e5;
+  background-color: #f7f7f2;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
     'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
     sans-serif;