Can someone help me i n making wave like sololearn website's homepage

Answer 1

The wave at https://www.sololearn.com is an SVG image.
You could use an img element:
<img src="https://sololearnassets.azureedge.net/header-signup-bg-mobile.svg">
You could also use CSS:
body {
background-image: url('https://sololearnassets.azureedge.net/header-signup-bg-mobile.svg');
background-size: cover;
background-repeat: no-repeat;
}
You can make your own SVG for a similar wave effect. Making your own could help if you want different colours or different shapes.

Answer 2

Thank you so so much sir