This page demonstrates Zola's code block annotations supported by the Apollo theme.

Line Numbers

Use linenos to enable line numbering.

```rust,linenos
fn main() {
    println!("Hello World");
    let x = 42;
}
```

1fn main() {
2    println!("Hello World");
3    let x = 42;
4}

Single Line Highlighting

Use hl_lines=2 to highlight a specific line.

```rust,linenos,hl_lines=2
fn main() {
    println!("Hello World");
    let x = 42;
}
```

1fn main() {
2    println!("Hello World");
3    let x = 42;
4}

Multi-Line Highlighting

Use hl_lines=2 3 to highlight multiple lines.

```rust,linenos,hl_lines=2 3
fn main() {
    println!("Hello World");
    let x = 42;
}
```

1fn main() {
2    println!("Hello World");
3    let x = 42;
4}

Range Highlighting

Use hl_lines=1-3 to highlight a range of lines.

```rust,linenos,hl_lines=1-3
fn main() {
    println!("Hello World");
    let x = 42;
}
```

1fn main() {
2    println!("Hello World");
3    let x = 42;
4}

Custom Line Number Start

Use linenostart=10 to start line numbers at a specific value.

```rust,linenos,linenostart=10
fn main() {
    println!("Hello World");
    let x = 42;
}
```

10fn main() {
11    println!("Hello World");
12    let x = 42;
13}

Hidden Lines

Use hide_lines=2 to hide specific lines from the output.

```rust,linenos,hide_lines=2
fn main() {
    println!("Hello World");
    let x = 42;
}
```

1fn main() {
3    let x = 42;
4}