It is Very Easy to Customize and it uses in website apllication.

.pd-l-30
.pd-l-50
Padding-top Values
Classes .pd-t-[value]
Values 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
Bigger Values 15 | 20 | 25 | 30 | ... | 120   (step of 5)
Even Bigger Values 110 | 120 | 130 | 140 | ... | 200   (step of 10)
Padding-Left Values
Classes .pd-l-[value]
Values 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
Bigger Values 15 | 20 | 25 | 30 | ... | 120   (step of 5)
Even Bigger Values 110 | 120 | 130 | 140 | ... | 200   (step of 10)
Padding-right Values
Classes .pd-r-[value]
Values 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
Bigger Values 15 | 20 | 25 | 30 | ... | 120   (step of 5)
Even Bigger Values 110 | 120 | 130 | 140 | ... | 200   (step of 10)
Padding-bottom Values
Classes .pd-b-[value]
Values 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
Bigger Values 15 | 20 | 25 | 30 | ... | 120   (step of 5)
Even Bigger Values 110 | 120 | 130 | 140 | ... | 200   (step of 10)

It is Very Easy to Customize and it uses in website apllication.

Class Value
.pd-[size]-t-[value]
.pd-[size]-r-[value]
.pd-[size]-b-[value]
.pd-[size]-l-[value]

size: xs | sm | md | lg | xl

value: the padding value (refer to code above)