diff --git a/src/Html/Renderable.php b/src/Html/Renderable.php
index d51c554..478718b 100644
--- a/src/Html/Renderable.php
+++ b/src/Html/Renderable.php
@@ -4,5 +4,6 @@ namespace Erusev\Parsedown\Html;
 
 interface Renderable
 {
-    public function getHtml(): string;
+    /** @return string */
+    public function getHtml();
 }
diff --git a/src/Html/Renderables/Element.php b/src/Html/Renderables/Element.php
index a3fa681..b847bf6 100644
--- a/src/Html/Renderables/Element.php
+++ b/src/Html/Renderables/Element.php
@@ -22,11 +22,8 @@ final class Element implements Renderable
      * @param array<string, string> $attributes
      * @param Renderable[]|null $Contents
      */
-    public function __construct(
-        string $name,
-        array $attributes,
-        ?array $Contents
-    ) {
+    public function __construct($name, $attributes, $Contents)
+    {
         $this->name = $name;
         $this->attributes = $attributes;
         $this->Contents = $Contents;
@@ -35,10 +32,10 @@ final class Element implements Renderable
     /**
      * @param string $name
      * @param array<string, string> $attributes
-     * @param Renderable ...$Contents
-     *
+     * @param Renderable[] $Contents
+     * @return self
      */
-    public static function new(string $name, array $attributes, Renderable ...$Contents): self
+    public static function create($name, array $attributes, array $Contents)
     {
         return new self($name, $attributes, $Contents);
     }
@@ -46,13 +43,15 @@ final class Element implements Renderable
     /**
      * @param string $name
      * @param array<string, string> $attributes
+     * @return self
      */
-    public static function selfClosing(string $name, array $attributes): self
+    public static function selfClosing($name, array $attributes)
     {
         return new self($name, $attributes, null);
     }
 
-    public function name(): string
+    /** @return string */
+    public function name()
     {
         return $this->name;
     }
@@ -60,7 +59,7 @@ final class Element implements Renderable
     /**
      * @return array<string, string>
      */
-    public function attributes(): array
+    public function attributes()
     {
         return $this->attributes;
     }
@@ -68,33 +67,40 @@ final class Element implements Renderable
     /**
      * @return Renderable[]|null
      */
-    public function contents(): ?array
+    public function contents()
     {
         return $this->Contents;
     }
 
-    public function settingName(string $name): self
+    /**
+     * @param string $name
+     * @return self
+     */
+    public function settingName($name)
     {
         return new self($name, $this->attributes, $this->Contents);
     }
 
     /**
      * @param array<string, string> $attributes
+     * @return self
      */
-    public function settingAttributes(array $attributes): self
+    public function settingAttributes(array $attributes)
     {
         return new self($this->name, $attributes, $this->Contents);
     }
 
     /**
      * @param Renderable[]|null $Contents
+     * @return self
      */
-    public function settingContents(?array $Contents): self
+    public function settingContents($Contents)
     {
         return new self($this->name, $this->attributes, $Contents);
     }
 
-    public function getHtml(): string
+    /** @return string */
+    public function getHtml()
     {
         $html = '';
 
diff --git a/src/Html/Renderables/Text.php b/src/Html/Renderables/Text.php
index da0b6bc..ddccbae 100644
--- a/src/Html/Renderables/Text.php
+++ b/src/Html/Renderables/Text.php
@@ -10,12 +10,16 @@ final class Text implements Renderable
     /** @var string */
     private $text;
 
-    public function __construct(string $text = '')
+    /**
+     * @param string $text
+     */
+    public function __construct($text = '')
     {
         $this->text = $text;
     }
 
-    public function getHtml(): string
+    /** @return string */
+    public function getHtml()
     {
         return Escaper::htmlElementValue($this->text);
     }
diff --git a/src/Html/Sanitisation/CharacterFilter.php b/src/Html/Sanitisation/CharacterFilter.php
index 56294b9..f7baeb0 100644
--- a/src/Html/Sanitisation/CharacterFilter.php
+++ b/src/Html/Sanitisation/CharacterFilter.php
@@ -4,7 +4,11 @@ namespace Erusev\Parsedown\Html\Sanitisation;
 
 final class CharacterFilter
 {
-    public static function htmlAttributeName(string $text) : string
+    /**
+     * @param string $text
+     * @return string
+     */
+    public static function htmlAttributeName($text)
     {
         /**
          * https://www.w3.org/TR/html/syntax.html#name
@@ -23,7 +27,11 @@ final class CharacterFilter
         );
     }
 
-    public static function htmlElementName(string $text) : string
+    /**
+     * @param string $text
+     * @return string
+     */
+    public static function htmlElementName($text)
     {
         /**
          * https://www.w3.org/TR/html/syntax.html#tag-name
diff --git a/src/Html/Sanitisation/Escaper.php b/src/Html/Sanitisation/Escaper.php
index 1c33f8a..0ee611f 100644
--- a/src/Html/Sanitisation/Escaper.php
+++ b/src/Html/Sanitisation/Escaper.php
@@ -4,20 +4,31 @@ namespace Erusev\Parsedown\Html\Sanitisation;
 
 final class Escaper
 {
-    public static function htmlAttributeValue(string $text) : string
+    /**
+     * @param string $text
+     * @return string
+     */
+    public static function htmlAttributeValue($text)
     {
         return self::escape($text);
     }
 
-    public static function htmlElementValue(string $text) : string
+    /**
+     * @param string $text
+     * @return string
+     */
+    public static function htmlElementValue($text)
     {
         return self::escape($text, true);
     }
 
-    private static function escape(
-        string $text,
-        bool $allowQuotes = false
-    ) : string {
+    /**
+     * @param string $text
+     * @param bool $allowQuotes
+     * @return string
+     */
+    private static function escape($text, $allowQuotes = false)
+    {
         return \htmlentities(
             $text,
             $allowQuotes ? \ENT_NOQUOTES : \ENT_QUOTES,