This site browses the 4927 emails from Really Good Emails to count the use of certain HTML and CSS features. The numbers on this page indicate the percentage of HTML emails that use the corresponding HTML or CSS feature at least once.
Data is updated every month.

CSS Percentage
color
 98.17333%
font-size
 98.09215%
padding
 97.70652%
line-height
 97.42237%
display
 97.2194%
width
 96.99614%
text-decoration
 96.89466%
margin
 96.6917%
font-family
 96.26548%
height
 92.40917%
font-weight
 91.61762%
text-align
 91.55673%
border
 87.35539%
max-width
 83.62086%
background-color
 83.07286%
-webkit-text-size-adjust
 80.59671%
border-collapse
 77.71463%
padding-bottom
 74.28455%
padding-top
 73.89892%
padding-left
 69.81936%
padding-right
 69.79907%
min-width
 64.40024%
-ms-text-size-adjust
 63.08098%
vertical-align
 61.35579%
outline
 60.17861%
max-height
 57.92572%
border-radius
 56.15994%
mso-table-lspace
 55.95697%
mso-table-rspace
 55.95697%
overflow
 54.59712%
background
 51.28882%
letter-spacing
 50.67993%
-ms-interpolation-mode
 50.43637%
margin-top
 47.75726%
border-bottom
 47.10777%
margin-bottom
 46.53948%
border-top
 44.55044%
font-style
 44.32718%
margin-left
 44.28658%
float
 42.60199%
margin-right
 40.08524%
mso-line-height-rule
 38.6848%
opacity
 37.95413%
table-layout
 34.05724%
mso-hide
 34.03694%
visibility
 31.66227%
text-transform
 31.60138%
white-space
 29.32819%
background-image
 28.23219%
border-spacing
 27.68419%
background-position
 26.30404%
background-size
 25.75604%
background-repeat
 25.411%
-webkit-font-smoothing
 25.30952%
cursor
 24.07144%
border-width
 21.77796%
position
 21.43292%
src
 19.95129%
word-break
 19.62655%
min-height
 18.53055%
font
 17.29247%
word-wrap
 16.92714%
clear
 16.50091%
border-right
 16.44002%
border-left
 15.14106%
border-bottom-width
 13.98417%
border-color
 13.2535%
box-sizing
 13.03024%
border-style
 12.62431%
border-bottom-color
 12.34017%
-webkit-border-radius
 11.99513%
transition
 11.22387%
border-top-width
 10.59468%
-moz-border-radius
 10.43231%
border-right-width
 10.31053%
border-left-width
 10.04668%
box-shadow
 9.47838%
border-top-style
 9.19424%
border-top-color
 8.95068%
border-right-color
 8.66653%
border-left-color
 8.56505%
v-text-anchor
 8.32149%
direction
 8.03735%
top
 7.97646%
border-top-right-radius
 6.04831%
border-top-left-radius
 6.00771%
border-bottom-left-radius
 5.66268%
border-bottom-right-radius
 5.64238%
border-bottom-style
 5.05379%
-webkit-hyphens
 4.9929%
hyphens
 4.89141%
left
 4.87112%
-moz-hyphens
 4.72904%
text-indent
 4.66816%
-webkit-box-sizing
 4.62756%
-moz-box-sizing
 4.60727%
-moz-osx-font-smoothing
 4.50578%
mso-padding-alt
 4.32312%
mso-style-priority
 4.20134%
z-index
 4.07956%
content
 3.83601%
text-rendering
 3.65334%
mso-margin-top-alt
 3.61275%
font-variant
 3.59245%
right
 3.51126%
pointer-events
 3.45038%
-webkit-transition
 3.16623%
mso-fit-shape-to-text
 3.14593%
overflow-wrap
 2.7806%
mso-font-alt
 2.57763%
-webkit-box-shadow
 2.57763%
align
 2.55734%
list-style-type
 2.49645%
-webkit-text-decoration-color
 2.33408%
list-style
 2.27319%
word-spacing
 2.27319%
transform
 2.2326%
text-shadow
 2.15141%
background-attachment
 2.15141%
-ms-hyphens
 1.96874%
-moz-transition
 1.88756%
outline-style
 1.88756%
mso-text-raise
 1.78608%
border-right-style
 1.76578%
-moz-text-size-adjust
 1.72519%
-webkit-transform
 1.6643%
mso-margin-bottom-alt
 1.644%
mso-line-height-alt
 1.62371%
border-left-style
 1.58311%
text-size-adjust
 1.54252%
mso-width-percent
 1.50193%
-webkit-animation
 1.48163%
-moz-box-shadow
 1.46134%
list-style-position
 1.44104%
animation
 1.38015%
mso-border-alt
 1.35985%
font-stretch
 1.35985%
bottom
 1.27867%
-ms-transition
 1.23808%
-o-transition
 1.19748%
zoom
 1.17719%
https
 1.15689%
behavior
 1.15689%
font-smoothing
 1.01482%
text-overflow
 1.01482%
-webkit-tap-highlight-color
 0.99452%
unicode-range
 0.99452%
align-content
 0.89304%
font-display
 0.85245%
overflow-x
 0.81185%
animation-name
 0.77126%
-premailer-cellpadding
 0.77126%
-premailer-cellspacing
 0.77126%
animation-duration
 0.75096%
filter
 0.66978%
-fallback-width
 0.64948%
-ms-word-break
 0.64948%
-webkit-background-size
 0.64948%
mso-table-tspace
 0.64948%
mso-table-bspace
 0.64948%
mso-height-rule
 0.62919%
-ms-border-radius
 0.62919%
align-items
 0.60889%
font-variant-caps
 0.58859%
-webkit-touch-callout
 0.58859%
-premailer-align
 0.58859%
mso-cellspacing
 0.58859%
text-resize
 0.5683%
-webkit-text-resize
 0.5683%
user-select
 0.548%
border-image
 0.548%
animation-delay
 0.548%
font-variant-ligatures
 0.548%
animation-fill-mode
 0.5277%
-webkit-animation-name
 0.50741%
-webkit-appearance
 0.50741%
-webkit-animation-duration
 0.48711%
-premailer-width
 0.46682%
-moz-animation
 0.44652%
-ms-transform
 0.44652%
-webkit-text-stroke-width
 0.44652%
text-decoration-color
 0.44652%
mso-ansi-font-size
 0.42622%
-webkit-user-select
 0.42622%
text-decoration-line
 0.42622%
-o-border-radius
 0.42622%
widows
 0.40593%
quotes
 0.40593%
-moz-user-select
 0.40593%
outline-width
 0.38563%
mso-line-height
 0.38563%
-webkit-animation-delay
 0.38563%
background-clip
 0.38563%
-premailer-border
 0.36533%
overflow-y
 0.34504%
whitespace
 0.34504%
orphans
 0.32474%
mso-padding-top-alt
 0.32474%
-moz-background-size
 0.32474%
cellspacing
 0.30444%
mso-padding-bottom-alt
 0.30444%
-khtml-border-radius
 0.30444%
-ms-user-select
 0.30444%
-webkit-animation-fill-mode
 0.28415%
-webkit-animation-iteration-count
 0.28415%
animation-iteration-count
 0.28415%
-o-background-size
 0.28415%
text-decoration-style
 0.28415%
object-fit
 0.28415%
font-color
 0.26385%
cellpadding
 0.26385%
-moz-transform
 0.26385%
flex-direction
 0.26385%
list-style-image
 0.24356%
-webkit-border-top-left-radius
 0.24356%
font-feature-settings
 0.24356%
-premailer-height
 0.24356%
-webkit-backface-visibility
 0.24356%
outline-color
 0.24356%
mso-position-horizontal
 0.24356%
animation-timing-function
 0.24356%
transform-origin
 0.24356%
text-wrap
 0.22326%
-webkit-animation-timing-function
 0.22326%
caret-color
 0.22326%
justify-content
 0.22326%
font-smooth
 0.22326%
-o-animation
 0.22326%
-webkit-margin-after
 0.22326%
-webkit-margin-before
 0.22326%
-moz-appearance
 0.20296%
-ms-animation
 0.20296%
touch-action
 0.20296%
mso-special-format
 0.20296%
order
 0.20296%
-webkit-border-bottom-left-radius
 0.20296%
-o-transform
 0.20296%
flex
 0.20296%
-ms-backface-visibility
 0.18267%
bgcolor
 0.18267%
-moz-backface-visibility
 0.18267%
text-underline
 0.18267%
-webkit-transform-origin
 0.18267%
-webkit-perspective
 0.18267%
animation-play-state
 0.18267%
caption-side
 0.18267%
font-variant-numeric
 0.18267%
font-size-adjust
 0.18267%
-wings-cellpadding
 0.16237%
text-direction
 0.16237%
background-position-x
 0.16237%
size-adjust
 0.16237%
-moz-border-top-left-radius
 0.16237%
-moz-border-top-right-radius
 0.16237%
-wings-cellspacing
 0.16237%
-webkit-background-clip
 0.16237%
-webkit-filter
 0.16237%
font-variant-east-asian
 0.16237%
-wings-align
 0.16237%
so-line-height-rule
 0.16237%
-wings-height
 0.16237%
mso-position-horizontal-relative
 0.16237%
-premailer-role
 0.16237%
-wings-border
 0.16237%
webkit-text-size-adjust
 0.16237%
-webkit-overflow-scrolling
 0.16237%
-webkit-border-bottom-right-radius
 0.16237%
border-style-left
 0.16237%
-moz-letter-spacing
 0.14207%
moz-border-radius
 0.14207%
mso-border-width-alt
 0.14207%
mso-border-color-alt
 0.14207%
-ms-letter-spacing
 0.14207%
-webkit-border-top-right-radius
 0.14207%
grid-gap
 0.14207%
align-self
 0.14207%
grid-template-columns
 0.14207%
text-decaration
 0.14207%
-webkit-letter-spacing
 0.14207%
mso-padding-left-alt
 0.14207%
-ms-filter
 0.12178%
-wings-valign
 0.12178%
appearance
 0.12178%
font-height
 0.12178%
background-origin
 0.12178%
-apple-color-filter
 0.12178%
-ms-overflow-x
 0.12178%
!important
 0.12178%
-webkit-animation-direction
 0.12178%
family
 0.12178%
*display
 0.12178%
_width
 0.12178%
text-decoration-skip
 0.12178%
object-position
 0.12178%
radius
 0.12178%
background-position-y
 0.12178%
fill
 0.10148%
-wings-width
 0.10148%
-ms-flex
 0.10148%
-ms-flex-pack
 0.10148%
transition-timing-function
 0.10148%
-ms-font-feature-settings
 0.10148%
-webkit-padding-start
 0.10148%
-ms-overflow-style
 0.10148%
dis-play
 0.10148%
-moz-border-bottom-left-radius
 0.10148%
-ms-flex-align
 0.10148%
http
 0.10148%
-moz-animation-duration
 0.10148%
table-width
 0.10148%
-moz-border-bottom-right-radius
 0.10148%
-moz-animation-delay
 0.10148%
-moz-tab-size
 0.10148%
text-dectoration
 0.10148%
-webkit-nbsp-mode
 0.10148%
-premailer-bgcolor
 0.10148%
_vertical-align
 0.10148%
tab-size
 0.10148%
-moz-font-feature-settings
 0.10148%
-ms-flex-preferred-size
 0.08119%
-ms-flex-order
 0.08119%
-ms-flex-grow
 0.08119%
-o-font-feature-settings
 0.08119%
background-colour
 0.08119%
-ms-flex-positive
 0.08119%
-moz-border-radius-bottomleft
 0.08119%
-webkit-flex-grow
 0.08119%
-moz-border-radius-bottomright
 0.08119%
-webkit-order
 0.08119%
-ms-flex-basis
 0.08119%
image-rendering
 0.08119%
-webkit-box-ordinal-group
 0.08119%
-webkit-align-items
 0.08119%
-webkit-flex
 0.08119%
-ms-box-sizing
 0.08119%
-webkit-justify-content
 0.08119%
-webkit-box-pack
 0.08119%
flex-basis
 0.08119%
-webkit-box-flex
 0.08119%
-webkit-box-align
 0.08119%
mso-line-rule
 0.08119%
flex-grow
 0.08119%
valign
 0.08119%
z-inded
 0.08119%
mix-blend-mode
 0.08119%
border-image-width
 0.08119%
-moz-font-smoothing
 0.08119%
animation-direction
 0.08119%
text-decortation
 0.08119%
mso-padding-right-alt
 0.08119%
-webkit-flex-basis
 0.08119%
transition-duration
 0.08119%
transition-property
 0.08119%
outline-offset
 0.08119%
mso-border-left-alt
 0.06089%
-webkit-text-decoration
 0.06089%
-ms-overflow-y
 0.06089%
-width
 0.06089%
-moz-animation-iteration-count
 0.06089%
-webkit-transition-delay
 0.06089%
-moz-animation-timing-function
 0.06089%
-webkit-animation-play-state
 0.06089%
mso-height-source
 0.06089%
-webkit-font-feature-settings
 0.06089%
textdecoration
 0.06089%
backface-visibility
 0.06089%
clip
 0.06089%
-ms-animation-duration
 0.06089%
mso
 0.06089%
mso-ascii-font-family
 0.06089%
font-weigh
 0.06089%
-o-animation-delay
 0.06089%
-ms-animation-delay
 0.06089%
-o-animation-duration
 0.06089%
counter-increment
 0.06089%
-webkit-margin-end
 0.06089%
-webkit-hyyphens
 0.06089%
-moz-hyyphens
 0.06089%
counter-reset
 0.06089%
-moz-transform-origin
 0.06089%
hyyphens
 0.06089%
line-break
 0.06089%
-webkit-margin-start
 0.06089%
hight
 0.06089%
mso-border-right-alt
 0.06089%
font-kerning
 0.06089%
-moz-border-radius-topright
 0.06089%
page-background
 0.06089%
-webkit-border-vertical-spacing
 0.06089%
-webkit-border-horizontal-spacing
 0.06089%
-premailer-valign
 0.06089%
-webkit-line-break
 0.06089%
ms-text-size-adjust
 0.06089%
-webkit-text-fill-color
 0.06089%
-moz-border-radius-topleft
 0.06089%
mso-element-wrap
 0.06089%
z-align
 0.06089%
resize
 0.06089%
*width
 0.06089%
-o-object-fit
 0.06089%
boder
 0.06089%
stext-align
 0.04059%
-webkit3transition
 0.04059%
ms-transform-origin
 0.04059%
-ms-appearance
 0.04059%
mso-height-percent
 0.04059%
-o-filter
 0.04059%
vertial-align
 0.04059%
*height
 0.04059%
-o-text-size-adjust
 0.04059%
-moz-filter
 0.04059%
-khtml-opacity
 0.04059%
font-face
 0.04059%
em_hide
 0.04059%
color-scheme
 0.04059%
moz-transform-origin
 0.04059%
supported-color-schemes
 0.04059%
ms-transform
 0.04059%
-moz-word-break
 0.04059%
moz-transform
 0.04059%
-transition
 0.04059%
"text-indent
 0.04059%
"display
 0.04059%
speak
 0.04059%
ffont-family
 0.04059%
widthx
 0.04059%
mso-generic-font-family
 0.04059%
border-type
 0.04059%
pointer
 0.04059%
text-decoration-skip-ink
 0.04059%
-padding-top
 0.04059%
-moz-border-top-colors
 0.04059%
opcaity
 0.04059%
-border-bottom
 0.04059%
ont-family
 0.04059%
-moz-opacity
 0.04059%
moz-osx-font-smoothing
 0.04059%
hr
 0.04059%
-moz-border-left-colors
 0.04059%
-moz-border-bottom-colors
 0.04059%
-moz-border-right-colors
 0.04059%
-ms-transition-delay
 0.04059%
-webkit-text-adjust
 0.04059%
overlfow
 0.04059%
margin-block-start
 0.04059%
border-radius-right
 0.04059%
table-spacing
 0.04059%
maxt-width
 0.04059%
inline
 0.04059%
padding-botton
 0.04059%
mso-border-lh
 0.04059%
mso-width-source
 0.04059%
mso-line-hight-rule
 0.04059%
margin-block-end
 0.04059%
-webkit-border-collapse
 0.04059%
-mso-table-lspace
 0.04059%
-mso-table-rspace
 0.04059%
mso-table-wrap
 0.04059%
mso-table-top
 0.04059%
text-algin
 0.04059%
-webkit-text-decoration-skip
 0.04059%
-ms-box-shadow
 0.04059%
webkit-box-shadow
 0.04059%
-o-font-smoothing
 0.04059%
scroll-behavior
 0.0203%
widtht
 0.0203%
with
 0.0203%
text-align-last
 0.0203%
class
 0.0203%
omargin
 0.0203%
'padding
 0.0203%
background-blend-mode
 0.0203%
line=height
 0.0203%
max-wdith
 0.0203%
disply
 0.0203%
html_width
 0.0203%
_display
 0.0203%
mso-border-bottom-alt
 0.0203%
mso-border-top-alt
 0.0203%
page-break-inside
 0.0203%
mso-margin-alt
 0.0203%
border-image-slice
 0.0203%
helvetica
 0.0203%
border-image-source
 0.0203%
font-synthesis
 0.0203%
font-wright
 0.0203%
pointer-event
 0.0203%
style="color
 0.0203%
backgkround-repeat
 0.0203%
whitesace
 0.0203%
stroke
 0.0203%
-webkit-text-stroke
 0.0203%
will-change
 0.0203%
bbackground-color
 0.0203%
mso-para-margin-bottom
 0.0203%
-ms-touch-action
 0.0203%
disaply
 0.0203%
data
 0.0203%
vertical-alifn
 0.0203%
all
 0.0203%
arcsize
 0.0203%
stroke-width
 0.0203%
ackground-size
 0.0203%
cborder-spacing
 0.0203%
--loader-delay-offset
 0.0203%
visibilty
 0.0203%
margin-botton
 0.0203%
property
 0.0203%
order-spacing
 0.0203%
msp-line-height-rule
 0.0203%
border-image-repeat
 0.0203%
border-image-outset
 0.0203%
*/padding-bottom
 0.0203%
text-aign
 0.0203%
-webkit-text-style-adjust
 0.0203%
-ms-animation-fill-mode
 0.0203%
-moz-animation-fill-mode
 0.0203%
mso-font-width
 0.0203%
-webkit-box-direction
 0.0203%
-webkit-box-orient
 0.0203%
width=
 0.0203%
marign
 0.0203%
paddtin-top
 0.0203%
-moz-animation-play-state
 0.0203%
ßmargin-bottom
 0.0203%
-ms-animation-name
 0.0203%
-ms-animation-direction
 0.0203%
-ms-animation-iteration-count
 0.0203%
-khtml-border-radius-bottomright
 0.0203%
-o-box-shadow
 0.0203%
wieght
 0.0203%
-ms-animation-play-state
 0.0203%
-ms-animation-timing-function
 0.0203%
-o-animation-name
 0.0203%
-o-animation-direction
 0.0203%
-o-animation-fill-mode
 0.0203%
-o-animation-iteration-count
 0.0203%
-o-animation-play-state
 0.0203%
-o-animation-timing-function
 0.0203%
page-break-before
 0.0203%
-khtml-border-radius-bottomleft
 0.0203%
-ms-flex-direction
 0.0203%
-khtml-border-radius-topleft
 0.0203%
text-justify
 0.0203%
mrgin
 0.0203%
-o-box-sizing
 0.0203%
hanging-punctuation
 0.0203%
mso-margin-left-alt
 0.0203%
mso-tablerspace
 0.0203%
lineheight
 0.0203%
-webkit-outline
 0.0203%
-o-outline
 0.0203%
heighfbassict
 0.0203%
bpadding
 0.0203%
-moz-outline
 0.0203%
unicode-bidi
 0.0203%
padding-inline-start
 0.0203%
-khtml-border-radius-topright
 0.0203%
border-collapase
 0.0203%
-mbiblio-box-sizing
 0.0203%
fonsize
 0.0203%
mso-line-height-rule'
 0.0203%
-premeailer-align
 0.0203%
-box-shadow
 0.0203%
-border
 0.0203%
mso-vertical-align-special
 0.0203%
-moz-animation-name
 0.0203%
-moz-animation-direction
 0.0203%
table-align
 0.0203%
  -webkit-border-bottom-right-radius
 0.0203%
mso-margin-right-alt
 0.0203%
//background
 0.0203%
,helvetica,arial,sans-serif
 0.0203%
background-olor
 0.0203%
-webkit-transition-timing-function
 0.0203%
mso-para-margin-top
 0.0203%
border-collapsse
 0.0203%
olor
 0.0203%
columns
 0.0203%
2017-11-21-aus-d-1
 0.0203%
-outer-text-size-adjust
 0.0203%
flex-wrap
 0.0203%
list-type
 0.0203%
flex-flow
 0.0203%
-o-transform-origin
 0.0203%
-ms-transform-origin
 0.0203%
-mwebkit-border-radius
 0.0203%
-o-appearance
 0.0203%
-xx-text-size-adjust
 0.0203%
paddding-bottom
 0.0203%
paddding-top
 0.0203%
topmargin
 0.0203%
leftmargin
 0.0203%
marginheight
 0.0203%
marginwidth
 0.0203%
-adjust-ms-interpolation-mode
 0.0203%
border-none
 0.0203%
-premailer-left
 0.0203%
-ms-border-bottom-right-radius
 0.0203%
-o-border-bottom-right-radius
 0.0203%
-ms-border-bottom-left-radius
 0.0203%
-o-border-bottom-left-radius
 0.0203%
-webkit-opacity
 0.0203%
-mso-line-height-rule
 0.0203%
-o-border-top-right-radius
 0.0203%
border-radius-top-right
 0.0203%
v-text-align
 0.0203%
fonnt-weight
 0.0203%
20adding-bottom
 0.0203%
zmin-width
 0.0203%
mso-border-bottom-color-alt
 0.0203%
-khtml-user-select
 0.0203%
-webkit-border-after
 0.0203%
ext-transform
 0.0203%
text-transformation
 0.0203%
text-deocration
 0.0203%
font-weifght
 0.0203%
border-radius-bottom-right
 0.0203%
border-radius-bottom-left
 0.0203%
-premailer-colspan
 0.0203%
ffont-size
 0.0203%
font-weigth
 0.0203%
text-size
 0.0203%
border-radius-top-left
 0.0203%
text-�decoration
 0.0203%
undefined
 0.0203%
text‑decoration
 0.0203%
font‑size
 0.0203%
-webkit-box-decoration-break
 0.0203%
-o-box-decoration-break
 0.0203%
box-decoration-break
 0.0203%
hover
 0.0203%
letter-space
 0.0203%
v-align
 0.0203%
-ms-border-top-right-radius
 0.0203%
-ms-border-top-left-radius
 0.0203%
z_background-color
 0.0203%
-webkit-text
 0.0203%
text_decoration
 0.0203%
-webkit-mask-image
 0.0203%
-webkit-mask-size
 0.0203%
-ms-mask-image
 0.0203%
-ms-mask-size
 0.0203%
-moz-mask-image
 0.0203%
-moz-mask-size
 0.0203%
mask-image
 0.0203%
mask-size
 0.0203%
grid-column
 0.0203%
grid-row
 0.0203%
-ms-grid-column
 0.0203%
-ms-grid-row
 0.0203%
font-szie
 0.0203%
paddingtop
 0.0203%
font-decoration
 0.0203%
-webkit-text-asize-adjust
 0.0203%
padding-below
 0.0203%
mso-data-placement
 0.0203%
font_size
 0.0203%
min-heigth
 0.0203%
cell-spacing
 0.0203%
-amf-attr
 0.0203%
mso-padding
 0.0203%
-display
 0.0203%
-color
 0.0203%
-background-color
 0.0203%
-border-radius
 0.0203%
line-spacing
 0.0203%
webkit-border-radius
 0.0203%
-o-border-top-left-radius
 0.0203%
test
 0.0203%
47.0px
 0.0203%
mso-wrap-style
 0.0203%
//text-align
 0.0203%
//width
 0.0203%
//height
 0.0203%
text-emphasis
 0.0203%
-webkit-font-variant-ligatures
 0.0203%
-webkit-display
 0.0203%
mso-element-frame-width
 0.0203%
mso-element
 0.0203%
mso-element-left
 0.0203%
aol
 0.0203%
transition-delay
 0.0203%
“font-size
 0.0203%
style
 0.0203%
 border-collapse
 0.0203%
 mso-table-lspace
 0.0203%
 mso-table-rspace
 0.0203%
wdith
 0.0203%
alignment-adjust
 0.0203%
*margin-right
 0.0203%
vetical-align
 0.0203%
ms-overflow-style
 0.0203%
fcolor
 0.0203%
-moz-display
 0.0203%
-ms-display
 0.0203%
-moz-height
 0.0203%
-ms-height
 0.0203%
verticle-align
 0.0203%