Profile pictures overlap with content

div.picture runs into other content, possibly creating unusual side effects. Take a look at the attached screenshot. My user profile runs into the content clear-block div creating issues with how polls look. A proposed patch is to modify modules/system/defaults.css:

.clear-block {
  display: inline-block;
}

to

.clear-block {
  display: inline-block;
  clear: both;
}

I'm not sure if this has any unintended side effects though, and I gather someone more knowledgeable in Drupal's stylings can propose a better solution it it does.