The srclang attribute for HTML specifies the language of the text track.
srclang="value"
abbr
accept
accept-charset
accesskey
action
alt
as
async
autocapitalize
autocomplete
autofocus
autoplay
blocking
charset
checked
cite
class
color
cols
colspan
contenteditable
controls
coords
crossorigin
data
datetime
decoding
default
defer
dir
dirname
disabled
download
draggable
enctype
enterkeyhint
exportparts
fetchpriority
for
form
formaction
formenctype
formmethod
formnovalidate
formtarget
headers
height
hidden
high
href
hreflang
http-equiv
id
imagesizes
imagesrcset
inert
inputmode
integrity
is
ismap
itemid
itemprop
itemref
itemscope
itemtype
kind
label
lang
list
loading
loop
low
max
maxlength
media
method
min
minlength
multiple
muted
name
nomodule
nonce
novalidate
onabort
onafterprint
onauxclick
onbeforeinput
onbeforeprint
onbeforetoggle
onbeforeunload
onblur
oncancel
oncanplay
oncanplaythrough
onchange
onclick
oncontextlost
oncontextmenu
oncontextrestored
oncopy
oncut
ondblclick
ondrag
ondragend
ondragenter
ondragleave
ondragover
ondragstart
ondrop
ondurationchange
onended
onfocus
onformdata
onhashchange
oninput
oninvalid
onkeydown
onkeypress
onkeyup
onlanguagechange
onload
onloadeddata
onloadedmetadata
onloadstart
onmousedown
onmouseenter
onmouseleave
onmousemove
onmouseout
onmouseover
onmouseup
onmousewheel
onoffline
ononline
onpagehide
onpageshow
onpaste
onpause
onplay
onplaying
onprogress
onratechange
onreset
onresize
onscroll
onscrollend
onsearch
onseeked
onseeking
onselect
onstorage
onsubmit
onsuspend
ontimeupdate
ontoggle
onunload
onvolumechange
onwaiting
onwheel
open
optimum
part
pattern
ping
placeholder
playsinline
popover
popovertarget
popovertargetaction
poster
preload
readonly
referrerpolicy
rel
required
reversed
rows
rowspan
sandbox
scope
selected
shape
size
sizes
slot
span
spellcheck
src
srcdoc
srcset
start
step
style
tabindex
target
title
translate
type
usemap
value
width
wrap
Web Hypertext Application Technology Working Group (WHATWG)