Appearance of svg object in mobile view is different from desktop view

General
1 
body {
  margin: 0vh 0vw;
}

.header {
  position: relative;
  width: 100%;
  height: 12vh;
  background-color: #004d40;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  top: 0;
}

.line {
  position: absolute;
  left: 0;
  top: calc(50%);
  width: 100%;
  height: 0.25vh;
  background-color: white;
  z-index: 1;
}

svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, 0%);
  z-index: 2;
}

<!DOCTYPE html>
<html lang="tr">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>SVG Header with Half Circle</title>
</head>

<body>

  <div class="header">
    <div class="line"></div>
    <svg width="10vw" height="5vh" viewBox="0 0 100 50" xmlns="http://www.w3.org/2000/svg">
        <path d="M0,0 A50,50 0 0,0 100,0" fill="#004d40" stroke="white" stroke-width="3"/>
    
    </svg>
  </div>

</body>

</html>

Hello, when the svg object goes to mobile view, the svg gets distorted and a gap occurs between the semicircle and the line. Why is this caused and how can we solve it.
on dekstop:

tMcgZdyf
tMcgZdyf1370×638 12 KB

on mobie emulation:

3KQ7AKVl
3KQ7AKVl895×647 48.9 KB

Expected Result:

I was expecting it to look the same on mobile as on desktop.

2

Solutions:

  1. Use Viewport Units (vw, vh) for SVG Size:
  • Change the width and height attributes of the <svg> element to use viewport units (e.g., width="50vw" and height="25vh" ). This will ensure the SVG scales proportionally to the viewport size.
  1. Adjust Transform Origin for Centering:
  • Modify the transform attribute in the <path> element to adjust the transform origin. A common approach is to set it to the center of the semicircle (50%, 0%):

HTML

<path d="M0,0 A50,50 0 0,0 100,0" fill="#004d40" stroke="white" stroke-width="3
      • The scale(1, 0.5) part ensures the height of the semicircle is half the width.

HTML

<svg width="50vw" height="25vh" viewBox="0 0 100 50" xmlns="http://www.w3.org/2000/svg">
    <path d="M0,0 A50,50 0 0,0 100,0" fill="#004d40" stroke="white" stroke-width="3" transform="translate(-50%, 0%) scale(1, 0.5)" />
</svg>

Additional Considerations:

  • You may need to adjust the scaling factor (e.g., scale(1.2, 0.6) ) based on your desired shape and styling.
  • Test the changes thoroughly on different devices and browsers to ensure consistent rendering.