" ".
!
, "" DOM. , DOM, , , React, , . DOM, React , . - :
document.body.style.overflow = "hidden"
document.body.className += " no-sroll"
. , React DOM #app , . , - React , , .
, , "" , . , React body. :
<html>
<body>
<div id="app">
<div id="scroll-container">
</div>
</div>
</body>
</html>
body, body #app , , #scroll-container React.