-2
Just save a PNG image from with the color of the div, and put it under the same.
Or you can use the code.
.box2 {
    background-color: #FF895B;
    position: relative;
    height: 500px;
}
.box2:after {
    background: inherit;
    bottom: 0;
    content: '';
    display: block;
    height: 50%;
    left: 0;
    position: absolute;
    right: 0;
    transform: skewY(1.5deg);
    transform-origin: 0%;
}<!-- Box 2 -->
<div class="box2">
</div>