<!DOCTYPE HTML>
<title>Test of reduction of border-radius for scrollbars (border drawing)</title>
<style>

.contain { height: 130px; position: relative }

.test {
  position: absolute;
  top: 0;
  left: 0;
  border: medium solid blue;
  border-width: 2px 4px 8px 10px;
  height: 100px;
  width: 200px;
  border-radius: 12px / 15px;
}

.cover {
  position: absolute;
  width: 200px;
  height: 100px;
  top: 2px;
  left: 10px;
  background: blue;
}

#x, #xy { overflow-x: scroll }
#y, #xy { overflow-y: scroll }

</style>

<div class="contain">
  <div class="test" id="x"></div>
  <div class="cover" style="border-top-right-radius: 5px"></div>
</div>

<div class="contain">
  <div class="test" id="y"></div>
  <div class="cover"></div>
</div>

<div class="contain">
  <div class="test" id="xy"></div>
  <div class="cover"></div>
</div>