<!DOCTYPE html>
<
html
>
<
body
>
<
svg
width
=
"800"
height
=
"400"
style
=
"background-color: aqua;"
>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"400"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"red"
/>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"300"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"yellow"
/>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"250"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"green"
/>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"200"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"blue"
/>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"150"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"indigo"
/>
<
circle
cx
=
"400"
cy
=
"450"
r
=
"100"
stroke
=
"none"
stroke-width
=
"2"
fill
=
"violet"
/>
</
svg
>
</
body
>
</
html
>