body * {
     visibility: hidden;
 }
.main-content, .main-content * {
    visibility: visible;
}
.main-content {
    position: absolute !important;
    left: 0;
    top: 0;
}
.main-content .function-button{
    display:none;
}
.equal-cols-height{
    display:block;
}

footer, nav{
    display: none;
}
@page
{
    size:  auto;   /* auto is the initial value */
    margin: 0mm;  /* this affects the margin in the printer settings */
}

html
{
    background-color: #FFFFFF;
    margin: 0px;  /* this affects the margin on the html before sending to printer */
}

body
{
    margin: 10mm 15mm 10mm 15mm; /* margin you want for the content */
}