html, body{
  border: 0;
}

:root{
  font-family: sans-serif;
  font-size: 16px;
}

body{
  padding: 0.7em;
}

main{
  margin: 3em auto;
  width: fit-content;
  border: 1px solid;
  max-width: 550px;
  max-height: calc( 100% - 100px );
  overflow: auto;
}

fieldset{
  position: relative;
  display: block;
  border: 1px solid;
  margin: 0.7em;
  padding: 0.7em;
}

h3{
  word-break: break-all;
}

ul.my-files{
  border: 1px solid;
  height: 150px;
  overflow: auto;
}

.my-files li::marker{
  content:'';
}