Wavy shape with css

Issue

I'm trying to recreate this image with CSS:

I would not need it to repeat. This is what I started but it just has a straight line:

#wave {
  position: absolute;
  height: 70px;
  width: 600px;
  background: #e0efe3;
}

<div id="wave"></div>

Solution

I'm not sure it's your shape but it's close - you can play with the values:

https://jsfiddle.net/7fjSc/9/

#wave {
  position: relative;
  height: 70px;
  width: 600px;
  background: #e0efe3;
}
#wave:before {
  content: "";
  display: block;
  position: absolute;
  border-radius: 100% 50%;
  width: 340px;
  height: 80px;
  background-color: white;
  right: -5px;
  top: 40px;
}
#wave:after {
  content: "";
  display: block;
  position: absolute;
  border-radius: 100% 50%;
  width: 300px;
  height: 70px;
  background-color: #e0efe3;
  left: 0;
  top: 27px;
}

<div id="wave"></div>

Answered By - Kamran Asgari