html {
  height: 100%;
}
body {
  margin:0;
  padding:0;
  font-family: sans-serif;
  background: linear-gradient(#141e30, #243b55);
}

.upload-box {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 350px;
  padding: 40px;
  transform: translate(-50%, -50%);
  background: rgba(40,40,40,.5);
  box-sizing: border-box;
  box-shadow: 0 15px 25px rgba(0,0,0,.6);
  border-radius: 10px;
}

.upload-box h2 {
  margin: 0 0 40px;
  padding: 0;
  color: #fff;
  text-align: center;
}

.upload-box .input-box {
  position: relative;
}

.upload-box .input-box input, .upload-box .input-box select {
  width: 100%;
  padding: 10px 0;
  font-size: 16px;
  color: #fff;
  margin-bottom: 30px;
  border: none;
  border-bottom: 1px solid #fff;
  outline: none;
  background: transparent;
}
.upload-box .input-box label {
  position: absolute;
  padding: 10px 0;
  pointer-events: none;
  top: -20px;
  left: 0;
  color: #407aaa;
  font-size: 12px;
}

.upload-box form a, .login-box a {
  position: relative;
  display: inline-block;
  padding: 10px 20px;
  color: #407aaa;
  font-size: 16px;
  text-decoration: none;
  text-transform: uppercase;
  overflow: hidden;
  transition: .5s;
  margin-top: 40px;
  letter-spacing: 4px;
  cursor: pointer;
}

.upload-box form a {
  background: #104777;
  color: #eee;
  border-radius: 5px;
  box-shadow: 0 0 5px #104777,
              0 0 25px #104777;
}

.upload-box a:hover, .login-box a:hover {
  background: #407aaa;
  color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 5px #407aaa,
              0 0 25px #407aaa,
              0 0 50px #407aaa,
              0 0 100px #407aaa;
}

.upload-box a span {
  position: absolute;
  display: block;
}

.login-info {
  color: #fff;
  font-size: 12px;
  font-weight: normal;
  margin-bottom: 20px;
}

.login-box {
  margin-bottom: 50px;
}

.login-box a {
  margin-top: 0px;
  background: #104777;
  color: #eee;
  border-radius: 5px;
  box-shadow: 0 0 5px #104777,
              0 0 25px #104777;
}

.upload-box a span:nth-child(1) {
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #407aaa);
  animation: btn-anim1 3s linear infinite;
}

@keyframes btn-anim1 {
  0% {
    left: -100%;
  }
  50%,100% {
    left: 100%;
  }
}

.upload-box a span:nth-child(2) {
  top: -100%;
  right: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent, #407aaa);
  animation: btn-anim2 2s linear infinite;
  animation-delay: .25s
}

@keyframes btn-anim2 {
  0% {
    top: -100%;
  }
  50%,100% {
    top: 100%;
  }
}

.upload-box a span:nth-child(3) {
  bottom: 0;
  right: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(270deg, transparent, #407aaa);
  animation: btn-anim3 3s linear infinite;
  animation-delay: .5s
}

@keyframes btn-anim3 {
  0% {
    right: -100%;
  }
  50%,100% {
    right: 100%;
  }
}

.upload-box a span:nth-child(4) {
  bottom: -100%;
  left: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(360deg, transparent, #407aaa);
  animation: btn-anim4 2s linear infinite;
  animation-delay: .75s
}

@keyframes btn-anim4 {
  0% {
    bottom: -100%;
  }
  50%,100% {
    bottom: 100%;
  }
}