@@ -585,7 +585,7 @@ specified tag name.</p>
585585</p >
586586<!-- image007.png -->
587587<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
588- <h3 id =" D03-04 " >04. Using querySelector</h3 >
588+ <h3 id =" D03-04 " >04. Using < b >< mark > querySelector</ mark ></ b > </h3 >
589589<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
590590<p >This method selects the first element that matches a specified CSS selector. It returns only
591591one element.</p >
@@ -640,7 +640,7 @@ one element.</p>
640640</p >
641641<!-- image008.png -->
642642<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
643- <h3 id =" D03-05 " >05. Using querySelectorAll</h3 >
643+ <h3 id =" D03-05 " >05. Using < b >< mark > querySelectorAll</ mark ></ b > </h3 >
644644<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
645645<p >Similar to <b ><mark >querySelector</mark ></b >, but it returns a <b ><mark >NodeList</mark ></b > containing
646646all elements that match the specified CSS selector.</p >
@@ -1140,10 +1140,9 @@ element by class name and we will change the background color of selected class
11401140<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
11411141<h3 >3. Using <b ><mark >document.querySelectorAll()</mark ></b ></h3 >
11421142<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
1143- <p >In this approach we are using the document.querySelectorAll() method. This method finds all
1143+ <p >In this approach we are using the < b >< mark > document.querySelectorAll()</ mark ></ b > method. This method finds all
11441144elements that match a specific CSS selector, like class name. It gives you a static list,
11451145which means it wont automatically update if page changes.</p >
1146-
11471146<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
11481147<h4 >Syntax:</h4 >
11491148<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
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