piftoworks

PFT – Widget Spacing Control adds margin-top / margin-bottom inputs (desktop and mobile, separately) to every widget’s settings form. Negative values are supported, so you can both expand and tighten the space between widgets without adding empty spacer widgets.
<h4>Features</h4>
<ul>
<li>Per-widget top and bottom margin (px) for desktop and mobile</li>
<li>Negative values supported (e.g. <code>-10</code> to tighten the gap)</li>
<li>Empty value falls back to the theme default</li>
<li>No settings page — inputs appear directly inside each widget’s form</li>
<li>Works with any theme (sidebar / widget area)</li>
<li>No external CSS file. No JavaScript. Single PHP file</li>
<li>No tracking. No external requests</li>
</ul>
<h4>How priority is guaranteed</h4>
To make sure your margin settings always win over theme and other plugin CSS:
<ol>
<li>A triple-ID selector (<code>#id#id#id</code>) raises specificity to 0-3-0-0, beating typical theme selectors.</li>
<li><code>!important</code> is added on every declaration as a second line of defense.</li>
<li>Styles are output via <code>wp_footer</code> at priority 9999, so they load after all other styles.</li>
</ol>
Media queries are used to switch between desktop and mobile values cleanly (inline styles are intentionally avoided because inline <code>!important</code> would override <code>@media</code> rules).
<h4>Responsive breakpoints</h4>
<ul>
<li>Desktop: 769px and above</li>
<li>Mobile: 768px and below</li>
</ul>
<h3>Privacy</h3>
This plugin does not collect, store, or transmit any personal data. It only stores numeric margin values inside each widget’s settings.

PFT – Widget Spacing Control

Set per-widget top and bottom margins separately for desktop and mobile. Supports negative values.

Jakobodb

This utility plugin adds a series of css classes that allow easy addition of set padding and margin to any element.
For basic use, the classes follow the format of [margin / padding][location letter: all, top, right, bottom, left, vertical, horizontal][amount: none, small, medium, large, extra large (0.5em, 1em, 2em, 4em)]
Also in the basic classes are percentages, taking the place of the last letter in the format [p][percentage] e.g. p7-5 for 7.5% or p15 for 15%.
Examples of Basic Classes:
<ul>
<li>man > margin all none = margin: 0px;</li>
<li>prl > padding right large = padding-right: 2em;</li>
<li>mvp5 > margin vertical 5% = margin: 5% 0;</li>
</ul>
Additional utility classes – First / Last child, Child / Sub
To add selective classes for adding margin / padding to the first / last child, any child, or any sub-element of the required element, simply add ‘last-‘, ‘first-‘, ‘child-‘, or ‘sub-‘ to the beginning of the basic classes.
Examples of Child Classes
<ul>
<li>last-mhxl > last-child margin horizontal extra large = last-mhxl :last-child { margin: 0 4em; }</li>
<li>last-pbn > last-child padding bottom none = last-pbn :last-child { padding-bottom: 0; }</li>
<li>first-mtm > first-child margin top medium = first-mtm :first-child { margin-top: 2em; }</li>
<li>child-mal > child margin all large = child-mal > * { margin: 4em; }</li>
<li>sub-php5 > sub elements padding horizontal 5 percent = sub-php5 * { padding: 0 5%; }</li>
</ul>
Additional utility classes – Responsive margin / padding
You can also apply the margin / padding required to certain screen widths, ranging from xl (min: 1200px) to xs (max: 480px). To use these responsive classes, add -[screen-size] to the end of the basic classes.
Examples of Responsive Classes
<ul>
<li>mrm-lg > margin right medium, large screen = (max-width: 1199px) and (min-width: 980px) margin-right: 2em;</li>
<li>pas-xs > padding all small, xsmall screen = (max-width: 480px) padding: 0.5em;</li>
<li>mhp15-md > margin horizontal 15%, medium screen = (max-width: 979px) and (min-width: 768px) margin-left: 15%; margin-right: 15%;</li>
</ul>
Full Table of Options
[margin / padding] 
m = margin 
p = padding
[location] 
a = all 
t = top 
r = right 
b = bottom 
l = left 
v = vertical (top + bottom) 
h = horizontal (left + right)
[amount] 
s = small (0.5em) 
m = medium (1.0em) 
l = large (2.0em) 
xl = extra large (4.0em) 
p5 = 5 percent (5.0%) 
p7-5 = 7.5 percent (7.5%) 
p10 = 10 percent (10.0%) 
p12-5 = 12.5 percent (12.5%) 
p15 = 15 percent (15.0%)
[first / last] (prefix) 
first- = > :first-child 
last- = > :last-child
[child / sub] (prefix) 
child- = > * 
sub- = *
[screen-size] (suffix) 
-xs = max-width: 480px 
-sm = max-width: 767px and min-width: 481px 
-md = max-width: 979px and min-width: 768px 
-lg = max-width: 1199px and min-width: 980px 
-xl = min-width: 1200px
Additional utility classes – Boxshadow
Using the boxshadow utility classes, you can quickly add a boxshadow to divs and other elements. The format of the utility classes is as follows: shadowout-[direction][blur]-[shadow opacity].
Examples of Boxshadow
<ul>
<li>shadowout-nm-medium > no direction, medium blur, medium opacity = box-shadow: 0 0 .15em 0 rgba(0,0,0,0.27);</li>
<li>shadowout-brm-dark > bottom-right direction, medium blur, dark opacity = box-shadow: .15em .15em .3em 0 rgba(0,0,0,0.54);</li>
</ul>
Options for Boxshadow utility
[direction] 
all directions shift the shadow by .15em 
n = none 
t = top 
b = bottom 
l = left 
r = right 
tl = top-left 
tr = top-right 
bl = bottom-left 
br = bottom-right
[blur] 
s = small (.15em) 
m = medium (.3em) 
l = large (.6em)
[shadow opacity] 
-light = light (0.135 opacity) 
-medium = medium (0.27 opacity) 
-dark = dark (0.54 opacity)

CSS Margin & Padding Utility

Utility for adding css classes for Margin and Padding e.g. .man for 0 margin on all sides, .ptm for 1em padding-top.

PFT – Widget Spacing Control vs CSS Margin & Padding Utility