In magento RWD theme, they have a built-in accordion feature.

But it is only for screen size is below 1000px.

So you have to change that file.

Step 1:

Copy the skin/frontend/rwd/default/js/app.js file into your theme.

step2:

Then change the following lines.

955,972,993

 screen and (max-width: 1000px) 
 screen and (max-width: ' + bp.medium + 'px)

In these change the Max width as 1900.

Now you can get accordion in all screen sizes.

In magento RWD theme, they have a built-in accordion feature.

But it is only for screen size is below 1000px.

So you have to change that file.

Step 1:

Copy the skin/frontend/rwd/default/js/app.js file into your theme.

step2:

Then change the following lines.

955,972,993

 screen and (max-width: 1000px) 
 screen and (max-width: ' + bp.medium + 'px)

In these change the Max width as 1900.

Now you can get accordion in all screen sizes.

In magento RWD theme, they have in build accordion fracture.

But it is only for screen size is below 1000px.

So you have to change that file.

Step 1:

Copy the skin/frontend/rwd/default/js/app.js file into your theme.

step2:

Then change the following lines.

955,972,993

 screen and (max-width: 1000px) 
 screen and (max-width: ' + bp.medium + 'px)

In these change the Max width as 1900.

Now you can get accordion in all screen size.

In magento RWD theme, they have a built-in accordion feature.

But it is only for screen size is below 1000px.

So you have to change that file.

Step 1:

Copy the skin/frontend/rwd/default/js/app.js file into your theme.

step2:

Then change the following lines.

955,972,993

 screen and (max-width: 1000px) 
 screen and (max-width: ' + bp.medium + 'px)

In these change the Max width as 1900.

Now you can get accordion in all screen sizes.