The HTML DOM Style top property returns and modify the top position of a positioned HTML element in an HTML document.
Syntax
Following is the syntax −
1. Returning top
object.top
2. Modifying top
object.top = “value”
Here, value can be −
| Sr.No | Value & Explanation |
|---|---|
| 1 | initial It set this property value to its default value. |
| 2 | inherit It inherits this property value from its parent element. |
| 3 | percentage(%) It defines value in percentage of the width of the parent element. |
| 4 | length It define value top in length unit. |
| 5 | auto It lets the browser set the value of top position. |
Let us see an example of HTML DOM Style top Property −
Example
<!DOCTYPE html>
<html>
<style>
body {
color: #000;
height: 100vh;
}
.btn {
background: #db133a;
border: none;
height: 2rem;
border-radius: 2px;
width: 40%;
display: block;
color: #fff;
outline: none;
cursor: pointer;
margin: 1rem 0;
}
.square {
width: 100px;
height: 100px;
background: #db133a6b;
position: relative;
}
.show {
font-size: 1.2rem;
margin: 1rem 0;
}
</style>
<body>
<h1>DOM Style top Property Demo</h1>
<div class='square'></div>
<button onclick="set()" class="btn">Set top position</button>
<script>
function set() {
document.querySelector('.square').style.top = "200px";
}
</script>
</body>
</html>Output
Click on “Set top position” button to set the top position of pink square.
