Will it work?

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,7 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="CssInvalidAtRule" enabled="false" level="ERROR" enabled_by_default="false" />
+    <inspection_tool class="Stylelint" enabled="true" level="ERROR" enabled_by_default="true" />
+  </profile>
+</component>

.idea/vagrant.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VagrantProjectSettings">
+    <option name="instanceFolder" value="" />
+    <option name="provider" value="" />
+  </component>
+</project>

.stylelintrc

@@ -0,0 +1,9 @@
+{
+  "rules": {
+    "at-rule-no-unknown": [
+      true, {
+        "ignoreAtRules": ["use", "mixin", "include"]
+      }
+    ]
+  }
+}

src/dummy.scss

@@ -0,0 +1,8 @@
+@use "styles";
+@use "page/about/about";
+@use "page/background/background";
+@use "page/content/content";
+@use "page/footer/footer";
+@use "page/image-viewer/image-viewer";
+@use "page/timeline/timeline";
+@use "page/timeline/timeline-element/timeline-element";

src/framework/page.ts

@@ -4,15 +4,22 @@ import { PageEventType } from "./page-event";
 export class Page extends PageElement {
   public constructor(
     children: Array<PageElement>,
-    private rootElement: HTMLElement
+    private rootElement: HTMLElement,
+    isRootPage = false
   ) {
     super(children);
     this.setElement(rootElement);
+    if (isRootPage) {
       this.broadcastEvent(
         { type: PageEventType.eventBroadcasterChanged, data: this },
         this
       );
+    }
+
     rootElement.append(...children.map(e => e.getElement()).filter(e => e));
+
+    if (isRootPage) {
       this.broadcastEvent({ type: PageEventType.onLoad }, this);
     }
   }
+}

src/page/about/about.html.ts

@@ -7,8 +7,10 @@ export const generate = (
   aPictureOf: string
 ): html => `
     <section id="about">
+        <div class="container">
             <header>
                 <img alt="${aPictureOf} ${name}" src="${picture}"/>
                 <h1>${name}</h1>
             </header>
+        </div>
     </section>`;

src/page/about/about.scss

@@ -2,8 +2,13 @@
 @import "../../style/vars";
 
 #about {
-  margin-top: $normal-margin - $small-margin;
+  width: 100%;
-  padding: $small-margin;
+  backdrop-filter: blur($blur-radius);
+  padding: $normal-margin;
+
+  .container {
+    width: $body-width;
+    margin: auto;
 
     header {
       @include center-children();
@@ -19,9 +24,20 @@
         margin-right: 1.5ex;
         cursor: pointer;
       }
+
+      @media (max-width: $breakpoint-width) {
+        flex-direction: column;
+        img {
+          margin: 0 0 $small-margin 0;
+        }
+        h1 {
+          text-align: center;
+        }
+      }
     }
 
     * {
       text-align: justify;
     }
   }
+}

src/page/about/about.ts

@@ -10,8 +10,8 @@ export class PageHeader extends PageElement {
     const root = createElement(generate(header, aPictureOf));
     const content = new PageContent(header.about);
 
-    root.appendChild(content.getElement());
     super([content]);
     this.setElement(root);
+    this.query(".container").appendChild(content.getElement());
   }
 }

src/page/background/background.html.ts

@@ -5,6 +5,7 @@ export const generate = (
   count: number,
   color?: () => string,
   height?: () => number,
+  isAnimated?: (index) => boolean,
   transform?: () => string
 ): html => `
     <section class="background">
@@ -13,8 +14,12 @@ export const generate = (
             ? new Array(count)
                 .fill(0, 0, count)
                 .map(
-                  _ =>
+                  (_, i) => `
-                    `<div style="background-color: ${color()}; height: ${height()}px; transform: ${transform()}"></div>`
+                    <div class="${
+                      isAnimated(i) ? "animated" : ""
+                    }" style="background-color: ${color()}; height: ${height()}px; transform: ${transform()}"
+                    ></div>
+                `
                 )
                 .join("")
             : ""

src/page/background/background.scss

@@ -9,11 +9,25 @@
   transform-style: preserve-3d;
   overflow: hidden;
 
+  transition: height $slow-transition-time, width $slow-transition-time;
+
   div {
     border-radius: 10000px;
     position: absolute;
     left: 0;
     top: 0;
     width: 160px;
+
+    &.animated {
+      animation: fade-in 1s linear forwards;
+      @keyframes fade-in {
+        from {
+          opacity: 0;
+        }
+        to {
+          opacity: 1;
+        }
+      }
+    }
   }
 }

src/page/background/background.ts

@@ -13,6 +13,9 @@ export class PageBackground extends PageElement {
   private colors = ["#fff9e077", "#ffd6d677"];
   private blobSize = 150; // with margin
   private perspective = 5;
+  private currentRealHeight = 0;
+  private currentRealWidth = 0;
+  private currentBlobCount = 0;
 
   public constructor() {
     super();
@@ -39,6 +42,7 @@ export class PageBackground extends PageElement {
       siblings.map(c => {
         const computedStyle = window.getComputedStyle(c);
         return (
+          // ignores margin collapse
           c.clientHeight +
           parseInt(computedStyle.marginTop) +
           parseInt(computedStyle.marginBottom) +
@@ -48,13 +52,21 @@ export class PageBackground extends PageElement {
       })
     );
 
-    const random = randomFactory(42);
+    if (height > this.currentRealHeight || width > this.currentRealWidth) {
+      this.currentRealHeight = height;
+      this.currentRealWidth = width;
+
+      const random = randomFactory(44);
 
       const count = Math.round((width * height) / this.blobSize ** 2);
 
       const randomWithKnownZ = (z: number, bound: number): number => {
         const l = (bound * (this.perspective + z)) / this.perspective;
-      return randomInInterval(-(l / 2 - bound / 2), l / 2 + bound / 2, random);
+        return randomInInterval(
+          -(l / 2 - bound / 2),
+          l / 2 + bound / 2,
+          random
+        );
       };
 
       this.setElement(
@@ -63,6 +75,7 @@ export class PageBackground extends PageElement {
             count,
             () => choose(this.colors, random),
             () => randomInInterval(160, 750, random),
+            i => i >= this.currentBlobCount,
             () => {
               const z = randomInInterval(-12, -25, random);
               return `
@@ -76,6 +89,8 @@ export class PageBackground extends PageElement {
         )
       );
 
+      this.currentBlobCount = count;
+    }
     this.getElement().style.width = `${width}px`;
     this.getElement().style.height = `${height}px`;
   }

src/page/content/content.scss

@@ -1,10 +1,10 @@
-@import "../../style/vars";
+@use "../../style/vars";
 
 .content {
-  margin-top: $small-margin;
+  margin-top: vars.$small-margin;
 
   * {
-    margin-top: $line-height;
+    margin-top: vars.$line-height;
   }
 
   p {

src/page/footer/footer.scss

@@ -7,7 +7,7 @@ footer#page-footer {
   margin: $small-margin auto 0 auto;
   padding: $normal-margin $normal-margin $line-height $normal-margin;
   width: 100%;
-  backdrop-filter: blur(5px);
+  backdrop-filter: blur($blur-radius);
 
   h2 {
     @include title-font();

src/page/image-viewer/image-viewer.scss

@@ -4,7 +4,6 @@
 #image-viewer {
   @include center-children();
   display: none;
-
   position: fixed;
   width: 100%;
   height: 100%;
@@ -22,6 +21,7 @@
   #cancel {
     @include square($icon-size);
     position: absolute;
+    box-sizing: content-box;
     padding: $normal-margin;
     right: 0;
     top: 0;

src/page/image-viewer/image-viewer.ts

@@ -8,9 +8,8 @@ export class PageImageViewer extends PageElement {
   public constructor() {
     super();
     const root = createElement(generate());
-    (root.querySelector("#cancel") as HTMLElement).onclick = () =>
-      PageImageViewer.hide(root);
     this.setElement(root);
+    this.query("#cancel").onclick = () => PageImageViewer.hide(root);
   }
 
   protected handleEvent(event: PageEvent, parent: PageElement) {

src/page/index.ts

@@ -8,15 +8,21 @@ import { Page } from "../framework/page";
 
 export const create = ({ config, header, timeline, footer }: Portfolio) => {
   document.title = header.name;
-
+  new Page(
+    [
+      new PageImageViewer(),
       new Page(
         [
           new PageBackground(),
           new PageHeader(header, config.aPictureOf),
           new PageTimeline(timeline, config.showMore, config.showLess),
-      new PageFooter(footer),
+          new PageFooter(footer)
-      new PageImageViewer()
         ],
-    document.body.querySelector("main")
+        document.body.querySelector("main"),
+        false
+      )
+    ],
+    document.body,
+    true
   );
 };

src/page/timeline/timeline-element/timeline-element.scss

@@ -23,7 +23,7 @@
       @include square($icon-size);
       position: absolute;
       top: 33%;
-      left: -0.5 * $icon-size - (1.5 * $line-width);
+      left: calc(-0.5 * #{$icon-size} - (1.5 * #{$line-width}));
       border: $line-width solid $normal-text-color;
       border-radius: 100%;
       background: $background;

src/page/timeline/timeline-element/timeline-element.ts

@@ -37,21 +37,31 @@ export class PageTimelineElement extends PageElement {
       this.more.style.height = "0";
       PageTimelineElement.show(showMore);
       PageTimelineElement.hide(showLess);
+      this.notifyOfHeightChange();
     } else {
-      this.openMoreToFullHeight();
       PageTimelineElement.hide(showMore);
       PageTimelineElement.show(showLess);
+      this.openMoreToFullHeight();
     }
 
     this.isOpen = !this.isOpen;
+  }
+
+  private notifyOfHeightChange(change: number = null) {
+    const notify = () =>
       this.eventBroadcaster?.broadcastEvent({
-      type: PageEventType.onBodyDimensionsChanged
+        type: PageEventType.onBodyDimensionsChanged,
+        data: change
       });
+    notify();
+    setTimeout(notify, 350);
   }
 
   private static hide(element: HTMLElement) {
     element.style.opacity = "0";
-    setTimeout(() => (element.style.visibility = "hidden"), 350);
+    setTimeout(() => {
+      element.style.visibility = "hidden";
+    }, 350);
   }
 
   private static show(element: HTMLElement) {
@@ -61,6 +71,7 @@ export class PageTimelineElement extends PageElement {
 
   private openMoreToFullHeight() {
     this.more.style.height = `${this.more.scrollHeight.toString()}px`;
+    this.notifyOfHeightChange();
   }
 
   private handleResize() {

src/style/vars.scss

@@ -13,21 +13,30 @@ $scrollbar-color: #ffd6d6;
 
 $fast-transition-time: 220ms;
 $slow-transition-time: 350ms;
-$line-width: 3px;
+$line-width: var(--line-width);
 $border-radius: 5px;
 $breakpoint-width: 900px;
 
-$normal-margin: 45px;
+$normal-margin: var(--normal-margin);
-$small-margin: 25px;
+$small-margin: var(--small-margin);
 $line-height: 2ch;
 
-$icon-size: 25px;
+$blur-radius: 6px;
-$body-width: 765px;
+$icon-size: var(--icon-size);
+$body-width: var(--body-width);
+
+:root {
+  --line-width: 3px;
+  --normal-margin: 45px;
+  --small-margin: 25px;
+  --icon-size: 25px;
+  --body-width: 765px;
 
   @media (max-width: $breakpoint-width) {
-  $line-width: 2px;
+    --line-width: 2px;
-  $normal-margin: 25px;
+    --normal-margin: 35px;
-  $small-margin: 20px;
+    --small-margin: 15px;
-  $icon-size: 20px;
+    --icon-size: 20px;
-  $body-width: 85%;
+    --body-width: 85%;
+  }
 }