How can I build the white/green Container (shaped Polygons) with CSS / CSS3 ?

How can I build the white/green Container (shaped Polygons) with CSS / CSS3 ?

                        
                            
                        
                        
                            On
                            
                            
                                                    
                    
                You could use a clip path for this: (although I have to admit, browser support isn't incredible):
body {
  height: 100%;
  background: #222;
}
div {
  height: 100px;
  width: 200px;
  line-height: 100px;
  text-align: center;
  background: rgb(180, 255, 50);
  -webkit-clip-path: polygon(0 5%, 60% 0, 100% 20%, 98% 100%, 50% 85%, 40% 100%, 5% 90%);
}
<div>This is clipped</div>
further reading:
you could also create such a shape using SVG:
html,
body {
  background: gray;
}
<svg version="1.0" xmlns="http://www.w3.org/2000/svg" width="400px" height="200px" viewBox="0 0 100 100">
  <g fill="green" stroke="black">
    <path d="M 0 5, 60 0, 100 20, 98 100, 50 85, 40 100, 5 90z" />
  </g>
</svg>
disclaimer
Please note I am still learning SVG myself, so it may require some tweaking of values.
You could use a basic
SVGpathhttp://codepen.io/anon/pen/XbaKLp
Mx yrepresents the first coordinates;Lx yrepresents a straight line from previous coordinates to(x, y).(you can find further information about
pathon MDN)Result
Then you may add text or markup inside the SVG using the
<foreignObject>...</foreignObject>element, e.g. suppose we need to insert a linkalong with some basic CSS
the final result is http://codepen.io/anon/pen/QbMEeW
and you can even apply some
CSStransformation to theSVGelement itself, e.g.so it can look as in your example.