.big-banner{
  position: relative;   background: url('../img/encabezado.jpg') no-repeat center center
; background-size: cover;}

.big-back{
  position: relative;   background: url('../img/fondo.jpg') no-repeat center center
; background-size: cover;}

.fresh-content{
    background: linear-gradient(-45deg,#ec5252,#6e1a52);
}