I want change background color without using click button 
<script>  
    onclick.document.getElementById('myDiv').style.backgroundColor = 'red';   
</script>
I want change background color without using click button 
<script>  
    onclick.document.getElementById('myDiv').style.backgroundColor = 'red';   
</script>
 
    
     
    
    you have to attach click event and then you can do it , there is nothing like this onclick.document.getElementById(
document.addEventListener("click", function(){
    document.getElementById("myDiv").style.backgroundColor = 'red';
});
