Help aligning images in a row inside the accordion

I have 3 images inside a [row] and then each inside a [one_third] shortcode. This is all inside an accordion tab. The problem is the images are not top aligned in the row.

[row][one_third]<img src="http://www.hatshaiti.org/wp-content/uploads/2017/10/edited1920x1080Cutie-Dickieson2-1024x576.jpg" style="vertical-align: top;" alt="" width="500" height="281" class="aligncenter size-large wp-image-36620 hats_photo_border" />[/one_third]
[one_third]<img src="http://www.hatshaiti.org/wp-content/uploads/2017/10/edited1920x1080IMG_7440-1024x576.jpg" style="vertical-align: top;" alt="" width="500" height="281" class="aligncenter size-large wp-image-36621 hats_photo_border" />[/one_third]
[one_third]<img class="aligncenter size-large wp-image-36618 hats_photo_border" src="http://www.hatshaiti.org/wp-content/uploads/2017/10/edited1920x1080IMG_5850-1024x576.jpg" style="vertical-align: top;" alt="" width="500" height="281" />[/one_third][/row]

When I use the same code on a page - not an accordion - it aligns perfectly.

Can you help?

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Lynn