<form class="form">
     <div class="form-title"><span>sign in to your</span></div>
      <div class="title-2"><span>SPACE</span></div>
      <div class="input-container">
        <input class="input-mail" type="email" placeholder="Enter email">
        <span> </span>
      </div>

      <section class="bg-stars">
        <span class="star"></span>
        <span class="star"></span>
        <span class="star"></span>
        <span class="star"></span>
      </section>

      <div class="input-container">
        <input class="input-pwd" type="password" placeholder="Enter password">
      </div>
      <button type="submit" class="submit">
        <span class="sign-text">Sign in</span>
      </button>

      <p class="signup-link">
        No account?
        <a href="" class="up">Sign up!</a>
      </p>
       
   </form>
*{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
body {
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background-color: #212121;
  font-family:arial;
}
.form {
  position: relative;
  display: block;
  padding: 2.2rem;
  max-width: 350px;
  background: linear-gradient(14deg, rgba(2,0,36, 0.8) 0%, rgba(24, 24, 65, 0.7) 66%, 
            rgb(20, 76, 99) 100%), radial-gradient(circle, rgba(2,0,36, 0.5) 0%, 
            rgba(32, 15, 53, 0.2) 65%, rgba(14, 29, 28, 0.9) 100%);
  border: 2px solid #fff;
  -webkit-box-shadow: rgba(0,212,255) 0px 0px 50px -15px;
  box-shadow: rgba(0,212,255) 0px 0px 50px -15px;
  overflow: hidden;
  z-index: +1;
}

/*------input and submit section-------*/

.input-container {
  position: relative;
}

.input-container input, .form button {
  outline: none;
  border: 2px solid #ffffff;
  margin: 8px 0;
  font-family: monospace;
}

.input-container input {
  background-color: #fff;
  padding: 6px;
  font-size: 0.875rem;
  line-height: 1.25rem;
  width: 250px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.input-mail:focus::placeholder {
  opacity: 0;
  transition: opacity .9s;
}

.input-pwd:focus::placeholder {
  opacity: 0;
  transition: opacity .9s;
}

.submit {
  position: relative;
  display: block;
  padding: 8px;
  background-color: #c0c0c0;
  color: #ffffff;
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  width: 100%;
  text-transform: uppercase;
  overflow: hidden;
}

.submit:hover {
  -webkit-transition: all 0.2s ease-out;
  -moz-transition: all 0.2s ease-out;
  transition: all 0.2s ease-out;
  border-radius: 3.9px;
  box-shadow: 4px 5px 17px -4px #ffffff;
  cursor: pointer;
}

.submit:hover::before {
  -webkit-animation: sh02 0.5s 0s linear;
  -moz-animation: sh02 0.5s 0s linear;
  animation: sh02 .5s 0s linear;
}

.submit::before {
  content: '';
  display: block;
  width: 0px;
  height: 85%;
  position: absolute;
  top: 50%;
  left: 0%;
  opacity: 0;
  background: #fff;
  box-shadow: 0 0 50px 30px #fff;
  -webkit-transform: skewX(-20deg);
  -moz-transform: skewX(-20deg);
  -ms-transform: skewX(-20deg);
  -o-transform: skewX(-20deg);
  transform: skewX(-20deg);
}

@keyframes sh02 {
  from {
    opacity: 0;
    left: 0%;
  }

  50% {
    opacity: 1;
  }

  to {
    opacity: 0;
    left: 100%;
  }
}

/*--------signup section---------*/

.signup-link {
  color: #c0c0c0;
  font-size: 0.875rem;
  line-height: 1.25rem;
  text-align: center;
  font-family: monospace;
}

.signup-link a {
  color: #fff;
  text-decoration: none;
}

.up:hover {
  text-decoration: underline;
}


/*--------header section-----------*/

.form-title {
  font-size: 1.25rem;
  line-height: 1.75rem;
  font-family: monospace;
  font-weight: 600;
  text-align: center;
  color: #fff;
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.7);
  animation-duration: 1.5s;
  overflow: hidden;
  transition: .12s;
}

.form-title span {
  animation: flickering 2s linear infinite both;
}

.title-2 {
  display: block;
  margin-top: -0.5rem;
  font-size: 2.1rem;
  font-weight: 800;
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  -webkit-text-stroke: #fff 0.1rem;
  letter-spacing: 0.2rem;
  color: transparent;
  position: relative;
  text-shadow: 0px 0px 16px #CECECE;
}

.title-2 span::before,
.title-2 span::after {
  content: '—';
}

@keyframes flickering {
  0%,
  100% {
    opacity: 1;
  }

  41.99% {
    opacity: 1;
  }

  42% {
    opacity: 0;
  }

  43% {
    opacity: 0;
  }

  43.01% {
    opacity: 1;
  }

  47.99% {
    opacity: 1;
  }

  48% {
    opacity: 0;
  }

  49% {
    opacity: 0;
  }

  49.01% {
    opacity: 1;
  }
}

/*---------shooting stars-----------*/


.bg-stars {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background-size: cover;
  animation: animateBg 50s linear infinite;
}

@keyframes animateBg {
  0%,100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.2);
  }
}

.star {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4px;
  height: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255,255,255,0.1),0 0 0 8px rgba(255,255,255,0.1),0 0 20px rgba(255,255,255,0.1);
  animation: animate 3s linear infinite;
}

.star::before {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg,#fff,transparent);
}

@keyframes animate {
  0% {
    transform: rotate(315deg) translateX(0);
    opacity: 1;
  }

  70% {
    opacity: 1;
  }

  100% {
    transform: rotate(315deg) translateX(-1000px);
    opacity: 0;
  }
}

.star:nth-child(1) {
  top: 0;
  right: 0;
  left: initial;
  animation-delay: 0s;
  animation-duration: 1s;
}

.star:nth-child(2) {
  top: 0;
  right: 100px;
  left: initial;
  animation-delay: 0.2s;
  animation-duration: 3s;
}

.star:nth-child(3) {
  top: 0;
  right: 220px;
  left: initial;
  animation-delay: 2.75s;
  animation-duration: 2.75s;
}

.star:nth-child(4) {
  top: 0;
  right: -220px;
  left: initial;
  animation-delay: 1.6s;
  animation-duration: 1.6s;
}
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