On Freitag, 30. Oktober 2020 18:11:46 CET @lbutlr wrote:

> echo $1 | sed -e '|</head>|<style>* {color:white !important;

> background-color: black !important; } </style></head>|'

echo $1 | sed -e 's|</head>|<style>.* {color:white !important; background-color: black !important; } </style></head>|'

Perhaps?