.background {
    width: 100%;
    height: 100vh;
    position: relative;
    background-image: url(../images/bg.jpg);
    background-color:rgba(255,255,255,0.3);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-blend-mode:lighten;
  }
.login {
    z-index: 100;
}