Both things are possible, leave it invisible or change the background to an image.
To leave invisible change the value of the property display
from CSS
to none
.
#hen{
background-color: #c82de5;
background-image: linear-gradient(to bottom, #c82de5, #67ad96);
display: none;
padding: 100px 0px;
position: relative;
width: 100%;
}
To change the background for an image would be the code below by changing IMAGE URL , by the image link:
#hen{
background-color: #c82de5;
background-image: url("URL DA IMAGEM");
display: block;
padding: 100px 0px;
position: relative;
width: 100%;
}
To leave the background image 100% would look like this:
#hen{
background-color: #c82de5;
background-image: url("URL DA IMAGEM");
background-size: 100% 100%;
display: block;
padding: 100px 0px;
position: relative;
width: 100%;
}