.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #4e73df;
  padding: 30px 15px;
}

.login-page form {
  width: min(600px, 100%);
  margin: 0;
  background: #efefef;
  padding: 60px 80px 80px;
  text-align: center;
  box-shadow: 2px 2px 3px rgba(0,0,0,0.1);
}

.login-page label {
  display: block;
  position: relative;
  margin: 40px 0;
}

.login-page .label-txt {
  position: absolute;
  top: -1.6em;
  padding: 10px;
  font-family: sans-serif;
  font-size: .8em;
  letter-spacing: 1px;
  color: rgb(120,120,120);
}

.login-page .input {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: none;
  outline: none;
}

.login-page .line-box {
  position: relative;
  width: 100%;
  height: 2px;
  background: #BCBCBC;
}

.login-page .line {
  position: absolute;
  width: 0%;
  height: 2px;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: blue;
  transition: ease .6s;
}

.login-page .input:focus + .line-box .line {
  width: 100%;
}

.login-page button {
  padding: 12px 24px;
  background: rgb(220,220,220);
  font-weight: bold;
  color: rgb(120,120,120);
  border: none;
  outline: none;
  border-radius: 3px;
  cursor: pointer;
  transition: ease .3s;
}

.login-page button:hover {
  background: skyblue;
  color: #ffffff;
}

.login-page .login {
  display: flex;
  justify-content: center;
}