Admin fieldset multiple flexbox regressions

[minusf]

Hello. I have noticed a couple regressions in the admin fieldset css. I think they are all related to switching <div class="form-row"> to flexbox.

1. input type=text boxes on the right side grow in height if the label doesn't fit into 160px.

2. long labels have uncovered another issue: incorrect line height and a forced height in general. After applying the following patch:

M django/contrib/admin/static/admin/css/forms.css
@@ -84,14 +84,13 @@ form ul.inline li {
     min-width: 160px;
     width: 160px;
     word-wrap: break-word;
-    line-height: 1;
+    line-height: 1.5;
 }
 
 .aligned label:not(.vCheckboxLabel):after {
     content: '';
     display: inline-block;
     vertical-align: middle;
-    height: 1.625rem;
 }
 
 .aligned label + p, .aligned .checkbox-row + div.help, .aligned label + div.readonly {

long labels looks more readable:

3. checkboxes are not aligned with their labels. I don't have a patch for this, only 2 screenshots:

with flexbox:

without flexbox: