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HTML

              
                <h2>Overflowing content</h2>
<div>
Choose Life. Choose a job. Choose a career. Choose a family. Choose a fucking big television, choose washing machines, cars, compact disc players and electrical tin openers. Choose good health, low cholesterol, and dental insurance. Choose fixed interest mortgage repayments. Choose a starter home. Choose your friends. Choose leisurewear and matching luggage. Choose a three-piece suit on hire purchase in a range of fucking fabrics. Choose DIY and wondering who the fuck you are on Sunday morning. Choose sitting on that couch watching mind-numbing, spirit-crushing game shows, stuffing fucking junk food into your mouth. Choose rotting away at the end of it all, pissing your last in a miserable home, nothing more than an embarrassment to the selfish, fucked up brats you spawned to replace yourselves. Choose your future. Choose life... But why would I want to do a thing like that? I chose not to choose life. I chose somethin' else. And the reasons? There are no reasons. Who needs reasons when you've got heroin? 
</div>

<h2>No gutter</h2>
<div>
Choose Life. Choose a job. Choose a career. Choose a family. Choose a fucking big television, choose washing machines, cars, compact disc players and electrical tin openers. Choose good health, low cholesterol, and dental insurance. Choose fixed interest mortgage repayments. Choose a starter home. Choose your friends. Choose leisurewear and matching luggage. Choose a three-piece suit on hire purchase in a range of fucking fabrics. 
</div>

<h2>Gutter</h2>
<div class="gutter">
Choose Life. Choose a job. Choose a career. Choose a family. Choose a fucking big television, choose washing machines, cars, compact disc players and electrical tin openers. Choose good health, low cholesterol, and dental insurance. Choose fixed interest mortgage repayments. Choose a starter home. Choose your friends. Choose leisurewear and matching luggage. Choose a three-piece suit on hire purchase in a range of fucking fabrics. 
</div>
              
            
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CSS

              
                div {
  width: min(100%, 34rem);
  height: 11rem;
  overflow: auto;
  border: 2px solid;
}

.gutter {
  scrollbar-gutter: stable;
}










h2 {
  margin-bottom: 0.5rem;
}

body {
  line-height: 1.5;
  font-family: sans-serif;
}
              
            
!

JS

              
                
              
            
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999px

Console