diff --git a/NOTES b/NOTES
new file mode 100644
index 0000000..4d4d73a
--- /dev/null
+++ b/NOTES
@@ -0,0 +1,2 @@
+vertical rythm: 16px = 1rem
+                24px = 1.5rem <== ?
diff --git a/src/lib/components/MainLayout.svelte b/src/lib/components/MainLayout.svelte
index 7228224..92e01d1 100644
--- a/src/lib/components/MainLayout.svelte
+++ b/src/lib/components/MainLayout.svelte
@@ -43,6 +43,9 @@
 </script>
 
 <style>
+  h1 {
+    line-height: calc(3 * var(--vertical-rythm));
+  }
   header nav {
     align-items: baseline;
     font-family: "Faktos";
diff --git a/src/lib/components/Section.svelte b/src/lib/components/Section.svelte
index 39e9a51..366ca3a 100644
--- a/src/lib/components/Section.svelte
+++ b/src/lib/components/Section.svelte
@@ -15,12 +15,14 @@
     grid-column: 1 / span 3 !important;
     align-items: baseline;
     gap: 1em;
-    margin-bottom: 1em;
+    margin-bottom: 1rem;
     background-color: var(--primary-background);
   }
   h2 {
     font-weight: bold;
     font-size: var(--font-scale-12);
+    margin: 0px;
+    height: 2rem;
   }
   hr {
     flex: 1;
diff --git a/src/lib/components/ShipEdit/Identification.svelte b/src/lib/components/ShipEdit/Identification.svelte
index fe354be..a697149 100644
--- a/src/lib/components/ShipEdit/Identification.svelte
+++ b/src/lib/components/ShipEdit/Identification.svelte
@@ -57,6 +57,8 @@
   .identification-row {
     display: flex;
     align-items: start;
+    margin-top: 1rem;
+    margin-bottom: 1rem;
   }
   select {
     min-width: 10em;
diff --git a/src/lib/components/ShipEdit/Structure/Streamlining.svelte b/src/lib/components/ShipEdit/Structure/Streamlining.svelte
index 7918702..4f77062 100644
--- a/src/lib/components/ShipEdit/Structure/Streamlining.svelte
+++ b/src/lib/components/ShipEdit/Structure/Streamlining.svelte
@@ -37,4 +37,7 @@
   label {
     margin-left: 2em !important;
   }
+  div.field {
+    margin-bottom: 0px;
+  }
 </style>
diff --git a/src/lib/components/ShipEdit/Weaponry/Weapon/Arcs.svelte b/src/lib/components/ShipEdit/Weaponry/Weapon/Arcs.svelte
index effd42c..aef7a7a 100644
--- a/src/lib/components/ShipEdit/Weaponry/Weapon/Arcs.svelte
+++ b/src/lib/components/ShipEdit/Weaponry/Weapon/Arcs.svelte
@@ -7,7 +7,7 @@
       on:click={() => clickArc(arc)}
     />
   {/each}
-  <circle cx="50%" cy="50%" r={size / 3} />
+  <circle cx="50%" cy="50%" r={inner} />
   <slot />
 </svg>
 
@@ -19,6 +19,7 @@
 
   export let selected = [];
   export let size = 60;
+  export let inner = size / 3;
 
   const dispatch = createEventDispatcher();
 
diff --git a/src/lib/components/ShipEdit/Weaponry/Weapon/Beam/index.svelte b/src/lib/components/ShipEdit/Weaponry/Weapon/Beam/index.svelte
index 8296d95..3e69191 100644
--- a/src/lib/components/ShipEdit/Weaponry/Weapon/Beam/index.svelte
+++ b/src/lib/components/ShipEdit/Weaponry/Weapon/Beam/index.svelte
@@ -19,7 +19,13 @@
   <i>arrow_drop_down</i>
 </Field>
 
-<Arcs selected={arcs} on:clickArc={({ detail }) => setArcs(detail)} />
+<div class="arcs">
+  <Arcs
+    size={48}
+    selected={arcs}
+    on:clickArc={({ detail }) => setArcs(detail)}
+  />
+</div>
 
 <script>
   import { getContext } from "svelte";
@@ -93,3 +99,9 @@
 
   $: memoChange(weaponClass, ...arcs);
 </script>
+
+<style>
+  .arcs {
+    margin-top: 0.5rem;
+  }
+</style>
diff --git a/src/lib/style/index.css b/src/lib/style/index.css
index 307d35a..21b384b 100644
--- a/src/lib/style/index.css
+++ b/src/lib/style/index.css
@@ -1,20 +1,25 @@
 @import "/fonts/faktos.css";
 @import "/fonts/dosis/dosis.css";
 
-  @font-face {
-    font-family: "Faktos";
-    font-style: normal;
-    src: url(/fonts/Faktos.ttf) format("truetype");
-  }
-  @font-face {
-    font-family: "Dosis";
-    src: url(/fonts/dosis/Dosis-VariableFont_wght.ttf) format("truetype");
-  }
+@font-face {
+  font-family: "Faktos";
+  font-style: normal;
+  src: url(/fonts/Faktos.ttf) format("truetype");
+}
+@font-face {
+  font-family: "Dosis";
+  src: url(/fonts/dosis/Dosis-VariableFont_wght.ttf) format("truetype");
+}
 
 :root {
-  --font: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
-  --main-font-family: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
-    --font-family: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI",
+  --font: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
+    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+  --main-font-family: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI",
+    Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+  --font-family: "Dosis", -apple-system, BlinkMacSystemFont, "Segoe UI";
+
+  --vertical-rythm: 1.5rem;
+  /* == 24px */
 
   --font-scale-9: 0.75rem;
   --font-scale-10: 1rem;
@@ -24,46 +29,52 @@
   --font-scale-14: 2.3125rem;
   --font-scale-15: 3.0625rem;
 
-    --oxford-blue: hsla(226, 60%, 10%, 1);
-    --royal-blue-dark: hsla(218, 100%, 16%, 1);
-    --indigo-dye: hsla(209, 95%, 24%, 1);
-    --cg-blue: hsla(193, 80%, 35%, 1);
-    --white: hsla(20, 60%, 99%, 1);
+  --oxford-blue: hsla(226, 60%, 10%, 1);
+  --royal-blue-dark: hsla(218, 100%, 16%, 1);
+  --indigo-dye: hsla(209, 95%, 24%, 1);
+  --cg-blue: hsla(193, 80%, 35%, 1);
+  --white: hsla(20, 60%, 99%, 1);
 
-    --main-width: 60em;
+  --main-width: 60em;
 }
 
 input.short {
   width: 5em !important;
 }
 
+body {
+  position: relative;
+  width: 100%;
+  height: 100%;
+  background-color: var(--white);
+  color: #333;
+  margin: 0;
+  padding: 8px;
+  box-sizing: border-box;
+}
 
-  body {
-    position: relative;
-    width: 100%;
-    height: 100%;
-    background-color: var(--white);
-    color: #333;
-    margin: 0;
-    padding: 8px;
-    box-sizing: border-box;
-  }
+a {
+  color: rgb(0, 100, 200);
+  text-decoration: none;
+}
 
-  a {
-    color: rgb(0, 100, 200);
-    text-decoration: none;
-  }
+a:hover {
+  text-decoration: underline;
+}
 
-  a:hover {
-    text-decoration: underline;
-  }
+a:visited {
+  color: rgb(0, 80, 160);
+}
 
-  a:visited {
-    color: rgb(0, 80, 160);
-  }
-
-
-h1 { font-size: var(--font-scale-15); }
-h2 { font-size: var(--font-scale-14); }
-h3 { font-size: var(--font-scale-13); }
-h4 { font-size: var(--font-scale-12); }
+h1 {
+  font-size: var(--font-scale-15);
+}
+h2 {
+  font-size: var(--font-scale-14);
+}
+h3 {
+  font-size: var(--font-scale-13);
+}
+h4 {
+  font-size: var(--font-scale-12);
+}