.gradient {
background: linear-gradient(90deg, #ff0000 0%, #0000ff 100%);
}
.gradient {
/* Fallback */
background: #ff0000;
/* Webkit */
background: -webkit-linear-gradient(left, #ff0000 0%, #0000ff 100%);
/* W3C */
background: linear-gradient(to right, #ff0000 0%, #0000ff 100%);
}