.content {
background: #FFEEEE;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #DDEFBB, #FFEEEE);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #DDEFBB, #FFEEEE); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}