#logo_loader {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 999999;
    background-color: #ffffff;
}
#logo_loader .f_logo {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 150px;
    height: 43px;
    text-align: center;
    color: #fff;
    font-size: 30px;
}
#logo_loader .f_logo img {
    width: 100%;
    height: auto;
}

#logo_loader .f_logo:before {
    content: "";
    display: block;
    width: 100%;
    height: 200%;
    background-color: #ffffff;
    position: absolute;
    top: 0;
    left: 100%;
    animation: loadLogo 1.5s;
}

@keyframes loadLogo {
  0% {
    left: 0;
  }
  50% {
    left: 0;
  }
  100% {
    left: 100%;
  }
}
#logo_loader.open {
    animation: slideOut forwards 1.5s 1.5s;
}

@keyframes slideOut {
  0% {
    transform: translateX(0%);
  }
  50% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(100%);
  }
}