The DOM scrollTop property is used to return or set the number of pixels an element is scrolled vertically. If the element’s content doesn’t generate a scroll bar, then its scrollTop value is 0.
Syntax:
- It returns the scrollTop property.
element.scrollTop
- It is used to set the scrollTop property
element.scrollTop = value
Where value specifies the number of pixels the element’s content is scrolled vertically.
Note:
- Its value can’t be negative.
- If the value specified is greater than the maximum scroll amount, the value is set to a maximum number.
Example 1: In this example, we will use DOM scrollTop property
HTML
<!DOCTYPE html>
< html >
< head >
< title >HTML DOM scrollTop Property</ title >
< style >
#div {
height: 100px;
width: 250px;
overflow: auto;
margin: auto;
}
#ele {
height: 300px;
background-color: green;
color: white;
}
</ style >
</ head >
< body style = "text-align: center;" >
< h1 style = "color:green;" >
GeeksforGeeks
</ h1 >
< h2 >
DOM scrollTop Property
</ h2 >
< div id = "div" onscroll = "Geeks()" >
< div id = "ele" >
< p >GeeksforGeeks</ p >
< p >A computer science portal for geeks.</ p >
< p >Geeks classes an extensive programme for geeks.</ p >
</ div >
</ div >
< p id = "p" ></ p >
< script >
function Geeks() {
let doc = document.getElementById("div");
let x = doc.scrollTop;
document.getElementById("p").innerHTML =
"Vertical scroll: " + x + "px";
}
</ script >
</ body >
</ html >
|
Output:
Example 2: In this example, we will use HTML DOM scroll top property.
HTML
<!DOCTYPE html>
< html >
< head >
< title >HTML DOM scrollTop Property</ title >
< style >
#div {
height: 100px;
width: 250px;
overflow: auto;
margin: auto;
}
#ele {
height: 300px;
background-color: green;
color: white;
}
</ style >
</ head >
< body style = "text-align: center;" >
< h1 style = "color:green;" >
GeeksforGeeks
</ h1 >
< h2 >
DOM scrollTop Property
</ h2 >
< button onclick = "Geeks()" >Scroll Div</ button >
< br >
< br >
< div id = "div" onscroll = "Geeks()" >
< div id = "ele" >
< p >GeeksforGeeks</ p >
< p >A computer science portal for geeks.</ p >
< p >Geeks classes an extensive programme for geeks.</ p >
</ div >
</ div >
< script >
function Geeks() {
let elmnt = document.getElementById("div");
elmnt.scrollTop = 50;
}
</ script >
</ body >
</ html >
|
Output:
Supported Browsers: The browser supported by scrollTop properties are listed below:
- Apple Safari 1
- Google Chrome 1
- Edge 12
- Firefox 1
- Opera 8
- Internet Explorer 5