@keyframes logo_rot {
  00% { opacity: 1; }
  50% { opacity: 0.5; }
  from { transform: rotate(0deg) translate(-20px) rotate(0deg); }
  to { transform: rotate(360deg) translate(-20px) rotate(-360deg); }
}

@-webkit-keyframes logo_rot {
  00% { opacity: 1; }
  50% { opacity: 0.5; }
  from { -webkit-transform: rotate(0deg) translate(-20px) rotate(0deg); }
  to { -webkit-transform: rotate(360deg) translate(-20px) rotate(-360deg); }
}

.logo {
  float: right;
}

.logo_main {
  margin-left: 17.5%;
  margin-top: 2.5%;
  width: 50%;
}

.logo_io {
  animation: 5s linear 0s normal none infinite logo_rot;
  -webkit-animation: 5s linear 0s normal none infinite logo_rot;
  margin-left: 12px;
  position: relative;
  top: 20px;
  width: 10%;
  margin-right: 25px;
}

.logo_main img,
.logo_io img {
  width: 10px;
  height: 10px;
}