doc layout based on a grid: wider images, and code block text aligned with body text

content/netcanv.dj

@@ -52,6 +52,7 @@ I've long since stepped down from maintaining it, but not much has been changed
 You can [download a build from GitHub](https://github.com/netcanv/netcanv) to play around with it yourself.
 It does almost nothing on the server side, so don't worry too hard about Slashdotting it.
 
+{.wide}
 ![The NetCanv lobby screen. There's a dialogue asking you for information to join. It's set against a sky blue background with three stripes of red, green, and dark blue paint flowing out of the app's logo at the top of the screen.][pic:01K3TQY7EM0T5K49KW6RRGR2G0]
 
 When you first open NetCanv, you're greeted with a start screen telling you to input your nickname, the server you'd like to join, and a Room ID.
@@ -59,6 +60,7 @@ If you'd like to start a session with your friends, you have to _host_ a room, w
 
 Once you're in a room, you can start drawing.
 
+{.wide}
 ![A white canvas with "Hello world!" written on it, as well as some scribbles. On top of the canvas, there's a toolbar with a selection tool, a brush tool, and a colour picker tool. At the bottom, there's a toolbar with a colour palette, an eraser button, and a thickness slider. There's also a hamburger menu on the right.][pic:01K3TRAEMD5T2DKDFAJQ9XRWDA]
 
 As for the drawing tools: there's a brush tool, a selection tool, a colour picker, an eraser, a fairly advanced colour palette, and that's it.
@@ -130,6 +132,7 @@ I'll say that friendly competition between the two of us was the coolest, wildes
 It was a fight to the death over who can win the most friends online in a room at once.
 It was a matter of creating the best multiplayer painting app, and swaying our whole community over to it.
 
+{.wide}
 ![MultiPixel running in the browser. There's a toolbar listing a bunch of tools on the left, including brushes, a flood fill, an airbrush, and smears. Next to that is a brush settings window, with a colour palette, and sliders for Size, Flow, and Smoothing. On the canvas there's a couple scribbles, including an at "@" and a tilde "~".][pic:01K3XBA43PZMKRC6VGJE0DYSB5]
 
 Ultimately, I think MultiPixel won the battle.
@@ -303,6 +306,7 @@ It _can't_ have that, because it is drawing things as they're being laid out.
 That's the biggest limitation of immediate mode UI, and proved to be a big pain in the ass in reality.
 Centering, or even laying things out from right to left, are very useful things to have in a UI framework, yet we couldn't have them due to how limited this model is.
 
+{.wide}
 ![The NetCanv lobby screen, again.][pic:01K3TQY7EM0T5K49KW6RRGR2G0]
 
 You might be wondering then, how is the dialogue centred in the lobby screen?
@@ -532,6 +536,7 @@ I had plans to make NetCanv handle this by checksumming the chunks somehow and r
 
 Another place where fearful concurrency strikes, is the selection tool.
 
+{.wide}
 ![Me using the selection tool from another client. There's a NetCanv logo pasted onto the canvas, with a selection reticle over it indicating my nickname, with an arrow pointing at it saying "That's me in another window."][pic:01K3X35NN7HBCA0DC2C6FC9FKP]
 
 When the user pastes a selection, NetCanv will resize it to fit 1024x1024 pixels to prevent DoS attacks, encode it as a PNG (asynchronously), send the encoded data over to other clients, and then those clients will decode the selection data (also asynchronously) and render out the selection reticle on their side.

static/css/doc.css

@@ -22,9 +22,23 @@ main.doc {
 
     & .doc-text {
         --doc-padding: 1.6rem;
+        --code-block-h-padding: 1.2rem;
+        --code-block-grid-space: var(--code-block-h-padding);
 
+        /* max-width: min(100%, var(--doc-text-width)); */
+
+        width: 100%;
         padding: var(--doc-padding);
-        max-width: min(100%, var(--doc-text-width));
+
+        display: grid;
+        grid-template-columns:
+            [left] 1fr
+            [left-wide] 1fr
+            [left-code] var(--code-block-grid-space)
+            [main] minmax(0, var(--doc-text-width))
+            [right-code] var(--code-block-grid-space)
+            [right-wide] 1fr
+            [right] 1fr;
 
         line-height: 1.6;
 
@@ -38,6 +52,10 @@ main.doc {
         /* text-align: justify;
            hyphens: auto; */
 
+        & > * {
+            grid-column: main;
+        }
+
         & p {
             padding-top: 0.5lh;
             padding-bottom: 0.5lh;
@@ -71,6 +89,9 @@ main.doc {
 
         & pre,
         & th-literate-program {
+            padding: 0.8rem var(--code-block-h-padding);
+            grid-column: left-code / right-wide;
+
             & code {
                 --recursive-wght: 500;
                 --recursive-mono: 0.5; /* You didn't expect a proportional font being used for code, did you. */
@@ -89,6 +110,10 @@ main.doc {
 
         & p:has(img.pic) {
             text-align: center;
+
+            &.wide {
+                grid-column: left-wide / right;
+            }
         }
 
         & header {
@@ -141,9 +166,11 @@ main.doc {
     }
 }
 
-@media (max-width: 700px) {
+@media (max-width: 850px) {
     main.doc {
         & .doc-text {
+            --code-block-grid-space: 0;
+
             & > pre,
             & > th-literate-program {
                 /* Stretch to whole page.