How to Display Iran Flag Image Using HTML & CSS?

You can go to the following page then download the file. Then click on Open in Media Viewer . Then use the developer tools to see the HTML used to show the SVG. The advantage of a SVG file is that it can be scaled to any size without loosing quality.

https://commons.wikimedia.org/wiki/File:Flag_of_Iran.svg

You could start by using this HTML & CSS (courtesy of Gemini):

The HTML:

The CSS:

.iran-flag {
  width: 100%;
  max-width: 700px; 
  aspect-ratio: 7 / 4;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  margin: 20px auto;
}

.stripe {
  flex: 1;
  width: 100%;
  position: relative;
}

.green {
  background-color: #239f40;
}

.white {
  background-color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
}

.red {
  background-color: #da0000;
}

.emblem {
  height: 80%;
  aspect-ratio: 1 / 1;
  border: 4px solid #da0000;
  border-radius: 50%;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.emblem::after {
  content: "";
  position: absolute;
  width: 4px;
  height: 100%;
  background-color: #da0000;
}

.white::before, .white::after {
  content: "????????????????";
  position: absolute;
  width: 100%;
  font-family: monospace;
  font-weight: bold;
  color: #ffffff;
  letter-spacing: 5px;
  font-size: 1.2vw;
  text-align: center;
}

.white::before {
  top: -15px; 
  color: #239f40; 
  text-shadow: 0 15px 0 white; 
}

.white::after {
  bottom: -15px;
  text-shadow: 0 -15px 0 white;
}