The Suite Fleet Flagship lessons include a large variety of minor, but helpful classes. They may not work in all places, but are worth a try.
The "display" collection of classes can change the display style of an element.
Custom CSS Class
Hides element,  will not preserve the space
display-none
Displays element inline with text
display-inline 
Displays element inline with text and retains sizing 
display-inline-block
Displays element as a block 
display-block
Visibility hides the element while preserving the space
Custom CSS Class
Hides element
visibility-hidden
Shows Element if  visibility is hidden
visibility-visible 
The "opacity" collection of classes can change the amount an element is faded.
Custom CSS Class
opacity0 - Element is fully transparent
opacity05
opacity10
opacity15
opacity20
opacity40
opacity60
opacity80
opacity100 - Element is fully opaque
The "float" collection of classes specifies alignment of an element inline with content
Custom CSS Class
Aligns an element to the left and inline with content
float-left
Aligns an element to the rightand inline with content
float-right
Removes float if needed 
float-none
Same thing?? 
clearfix
Transformation classes allow you to scale, flip, rotate, skew, and translate elements
Element scales in size from the center. It stays in place and may extend into nearby content.
Custom CSS Class
scalePercent25 - Scales element down to a quarter of the orignal size
scalePercent50 
scalePercent75 
scalePercent100 - Original size of element
scalePercent150 
scalePercent175 
scalePercent200 - Scales element up to double the original size 
Element flips along an axis
Flips element along the x-axis
flip-horizontal 
Flips element along the y-axis 
flip-vertical
Flips element along the x and y axis 
.flip-both
Element rotates around the center. It stays in place and may extend into nearby content.
Rotate element clockwise
Custom CSS Class
rotate0   - Original orientation (0 degrees)
rotate5 
rotate10 
rotate15 
rotate20 
... 
repeats  in increments of 5
... 
rotate85 
rotate90 
Rotate element counter-clockwise
Custom CSS Class
rotateNeg0   - Original orientation (0 degrees)
rotateNeg5 
rotateNeg10 
rotateNeg15 
rotateNeg20 
... 
repeats  in increments of 5
...  
rotateNeg85 
rotateNeg90 
Element skews giving it a slanted look.
Skew to the left
Custom CSS Class
skewX-left01 - Skews 1 degree to the left
skewX-left02 
skewX-left03 
skewX-left04 
skewX-left05 
skewX-left06 
skewX-left07 
skewX-left08 
skewX-left09 
skewX-left10 
Skew to the right
Custom CSS Class
skewX-right01 - Skews 1 degree to the right
skewX-right02 
skewX-right03 
skewX-right04 
skewX-right05 
skewX-right06 
skewX-right07 
skewX-right08 
skewX-right09 
skewX-right10 
Moves an element around it's current position based on it's size.
Translate up
Custom CSS Class
translateY-up0 
translateY-up25 
translateY-up33 
translateY-up50 
translateY-up66 
translateY-up75 
translateY-up100 
Translate right
Custom CSS Class
translateX-right0 
translateX-right25 
translateX-right33 
translateX-right50 
translateX-right66 
translateX-right75 
translateX-right100 
Translate down
Custom CSS Class
translateY-down0 
translateY-down25 
translateY-down33 
translateY-down50 
translateY-down66 
translateY-down75 
translateY-down100 
Translate left
Custom CSS Class
translateX-left0 
translateX-left25 
translateX-left33 
translateX-left50 
translateX-left66 
translateX-left75 
translateX-left100 
The "width" collection of classes sets the width of an element. Should even override the value give while in authoring.
Custom CSS Class
Pixels
w-0px
w-5px
w-10px
w-15px
w-20px
... 
repeats  in increments of 5
...
w-445px
w-450px
Percent
w-0percent
w-5percent
w-10percent
w-15percent
w-20percent
... 
repeats  in increments of 5
...
w-95percent
w-100percent
Viewport
w-0vw
w-5vw
w-10vw
w-15vw
w-20vw
... 
repeats  in increments of 5
...
w-95vw
w-100vw
The "height" collection of classes sets the height of an element. Should even override the value give while in authoring.
Custom CSS Class
Pixels
h-0
h-5
h-10
h-15
h-20
... 
repeats  in increments of 5
...
h-445
h-450
Percent
h-0percent
h-5percent
h-10percent
h-15percent
h-20percent
... 
repeats  in increments of 5
...
h-95percent
h-100percent
Viewport
h-0vh
h-5vh
h-10vh
h-15vh
h-20vh
... 
repeats  in increments of 5
...
h-95vh
h-100vh
The "margin" collection of classes adds space to the outside of an element. The number in the class name is in pixels
Custom CSS Class
All sides
m-0
m-5
m-10
m-15
m-20
... 
repeats  in increments of 5
...
m-195
m-200
Top
mt-0
mt-5
mt-10
mt-15
mt-20
... 
repeats  in increments of 5
...
mt-195
mt-200
Right
mr-0
mr-5
mr-10
mr-15
mr-20
... 
repeats  in increments of 5
...
mr-195
mr-200
Bottom
mb-0
mb-5
mb-10
mb-15
mb-20
... 
repeats  in increments of 5
...
mb-195
mb-200
Left
ml-0
ml-5
ml-10
ml-15
ml-20
... 
repeats  in increments of 5
...
ml-195
ml-200
The "padding" collection of classes adds space to the inside of an element. The number in the class name is in pixels
Custom CSS Class
All sides
p-0
p-5
p-10
p-15
p-20
p-30
p-40
Top
pt-0
pt-5
pt-10
pt-15
pt-20
pt-30
pt-40
Right
pr-0
pr-5
pr-10
pr-15
pr-20
pr-30
pr-40
Bottom
pb-0
pb-5
pb-10
pb-15
pb-20
pb-30
pb-40
Left
pl-0
pl-5
pl-10
pl-15
pl-20
pl-30
pl-40
The "border" collection of classes adds or removes a solid 1px gray border to the outside of an element
Custom CSS Class
Adds a border
All sides
border
Top
border-top
Right
border-right
Bottom
border-bottom
Left
border-left
Removes a border
All sides
border-0
Top
border-top-0
Right
border-right-0
Bottom
border-bottom-0
Left
border-left-0
The "position" collection of classes can change the positioning type, and then set the location of an element (see below)
Custom CSS Class
default 
position-default 
-or-
position-static
inherit
position-inherit
initial
position-initial
relative
position-relative
absolute
position-absolute
fixed
position-fixed
You can place an element onscreen using pixels as coordinates. You can even mix and match.
For example t-0 l-20 will place an element 0 pixels from the top, and 20 pixels from the left.
Top
t-0px
t-5px
t-10px
t-15px
t-20px
t-25px
... 
repeats  in increments of 5
... 
t-495px
t-500px
Right
r-0px
r-5px
r-10px
r-15px
r-20px
r-25px
... 
repeats  in increments of 5
... 
r-495px
r-500px
Bottom
b-0px
b-5px
b-10px
b-15px
b-20px
b-25px
... 
repeats  in increments of 5
... 
b-495px
b-500px
Left
l-0px
l-5px
l-10px
l-15px
l-20px
l-25px
... 
repeats  in increments of 5
... 
l-495px
l-500px
You can place an element onscreen using percentages. For example, l-50percent will place an element half-way across.
Pro Tip
The following set of classes will center an element:  position-absolute l-50percent t-50percent translate-center
Top
t-0percent
t-5percent
t-10percent
t-15percent
t-20percent
t-25percent
... 
repeats  in increments of 5
... 
t-95percent
t-100percent
Right
r-0percent
r-5percent
r-10percent
r-15percent
r-20percent
r-25percent
... 
repeats  in increments of 5
... 
r-95percent
r-100percent
Bottom
b-0percent
b-5percent
b-10percent
b-15percent
b-20percent
b-25percent
... 
repeats  in increments of 5
... 
b-95percent
b-100percent
Left
l-0percent
l-5percent
l-10percent
l-15percent
l-20percent
l-25percent
... 
repeats  in increments of 5
... 
l-95percent
l-100percent
When in a Classic Layout screen, images without Class names will stretch to the size you enter.
Scales an image to fill within the center of its container. Requires a defined height.
Custom CSS Class
image-cover
Scales an image to fit within the center of its container.
Custom CSS Class
image-contain
Sharpens the blur of smaller images that are scaled up. Most commonly used for pixel art.
Custom CSS Class
image-pixelate
The "rounded corners" collection of classes can set the corners of an element to sharp or rounded
Custom CSS Class
Removes rounded corners
rounded-0
Crops element within a ellipse.
rounded-ellipse
Crops element within a pill-shape. 
rounded-circle