Return the clear property:
alert(document.getElementById("myP").style.clear);
<!DOCTYPE html> <html> <body> <img style="float:left;" src="image1.png" width="100" height="132"> <p id="myP" style="clear:left;">This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text.</p> <button type="button" onclick="myFunction()">Return the value of the clear property</button> <p id="demo"></p> <script> function myFunction() {// w ww . j a v a 2 s . c om document.getElementById("demo").innerHTML = document.getElementById("myP").style.clear; } </script> </body> </html>