diff --git a/1-js/02-first-steps/02-structure/article.md b/1-js/02-first-steps/02-structure/article.md
index 4f16a99d..e81fd343 100644
--- a/1-js/02-first-steps/02-structure/article.md
+++ b/1-js/02-first-steps/02-structure/article.md
@@ -46,7 +46,7 @@ alert(3 +
+ 2);
```
-The code outputs `6` because JavaScript does not insert semicolons here. It is intuitively obvious that if the line ends with a plus `"+"`, then it is an "incomplete expression", so the semicolon is not required. And in this case that works as intended.
+The code outputs `6` because JavaScript does not insert semicolons here. It is intuitively obvious that if the line ends with a plus `"+"`, then it is an "incomplete expression", so a semicolon there would be incorrect. And in this case, that works as intended.
**But there are situations where JavaScript "fails" to assume a semicolon where it is really needed.**
diff --git a/1-js/09-classes/04-private-protected-properties-methods/article.md b/1-js/09-classes/04-private-protected-properties-methods/article.md
index 2d47464c..e26d0ec8 100644
--- a/1-js/09-classes/04-private-protected-properties-methods/article.md
+++ b/1-js/09-classes/04-private-protected-properties-methods/article.md
@@ -192,7 +192,7 @@ There's a finished JavaScript proposal, almost in the standard, that provides la
Privates should start with `#`. They are only accessible from inside the class.
-For instance, here's a private `#waterLimit` property and the water-checking private method `#checkWater`:
+For instance, here's a private `#waterLimit` property and the water-checking private method `#fixWaterAmount`:
```js run
class CoffeeMachine {
diff --git a/2-ui/5-loading/01-onload-ondomcontentloaded/article.md b/2-ui/5-loading/01-onload-ondomcontentloaded/article.md
index 377e7703..9cc9fc7c 100644
--- a/2-ui/5-loading/01-onload-ondomcontentloaded/article.md
+++ b/2-ui/5-loading/01-onload-ondomcontentloaded/article.md
@@ -45,7 +45,7 @@ For instance:
```
-In the example the `DOMContentLoaded` handler runs when the document is loaded, so it can see all the elements, including `![]()
` below.
+In the example, the `DOMContentLoaded` handler runs when the document is loaded, so it can see all the elements, including `![]()
` below.
But it doesn't wait for the image to load. So `alert` shows zero sizes.
diff --git a/8-web-components/6-shadow-dom-style/article.md b/8-web-components/6-shadow-dom-style/article.md
index 83a6962f..98e246a7 100644
--- a/8-web-components/6-shadow-dom-style/article.md
+++ b/8-web-components/6-shadow-dom-style/article.md
@@ -111,22 +111,7 @@ customElements.define('custom-dialog', class extends HTMLElement {
Now the additional centering styles are only applied to the first dialog: ``.
-## :host-context(selector)
-
-Same as `:host`, but applied only if the shadow host or any of its ancestors in the outer document matches the `selector`.
-
-E.g. `:host-context(.dark-theme)` matches only if there's `dark-theme` class on `` on anywhere above it:
-
-```html
-
-
- ...
-
-```
-
-To summarize, we can use `:host`-family of selectors to style the main element of the component, depending on the context. These styles (unless `!important`) can be overridden by the document.
+To summarize, we can use `:host`-family of selectors to style the main element of the component. These styles (unless `!important`) can be overridden by the document.
## Styling slotted content
@@ -317,7 +302,7 @@ Shadow DOM can include styles, such as `