Twenty Seventeen: Resolves default border style visibility for pullqu…

…ote block.

When a border color and width was added to the pullquote block but no border style was chosen the border was not visible. The expectation is that the border has a solid style by default when a color is selected.

Props pranitdugad, poena, sabernhardt.
Fixes #61362.


git-svn-id: https://develop.svn.wordpress.org/trunk@58469 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentyseventeen/assets/css/blocks.css

@@ -166,7 +166,7 @@ p.has-drop-cap:not(:focus)::first-letter {
 /* Pullquote */
 
 .wp-block-pullquote {
- border: 0;
+ border: 0 solid;
 }
 
 .wp-block-pullquote__citation,

src/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css

@@ -646,7 +646,7 @@ html[lang="th"] .edit-post-visual-editor * {
 /* Pullquote */
 
 .wp-block-pullquote {
- border: 0;
+ border: 0 solid;
 }
 
 .wp-block-pullquote.alignleft blockquote > .editor-rich-text p,