Set the bottom position of a <div> element:
document.getElementById("myDiv").style.bottom = "10px";
Click the button to position the DIV element 10 pixels from the bottom.
If the position property is set to "static", the bottom property has no effect.
<!DOCTYPE html> <html> <head> <style> #myDIV {//from ww w . j a v a2 s. co m position: absolute; width: 100px; height: 100px; background-color: coral; color: white; } </style> </head> <body> <button onclick="myFunction()">Test</button> <div id="myDIV"> <h1>myDIV</h1> </div> <script> function myFunction() { document.getElementById("myDIV").style.bottom = "10px"; } </script> </body> </html>