New features

• New is-underlined class for underlined text and links
• New auto value for margin and padding helper classes

Improvements

• New $section-padding-desktop Sass variable
• New $hero-body-padding-tablet Sass variable
• New $shadow Sass variable (used for .box, .card, .dropdown and .panel)
• Add is-normal size modifiers to .file and .content
• New %reset placeholder

Bugfix

• #3362 Fix slash divide