Webleb - HTML UI Elements -

body {
  background: linear-gradient(45deg, #74fc46, #3F5EFB);
  height: 100vh;
  font-family: "Montserrat", sans-serif;
}

.container {
  position: absolute;
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
}

form {
  background: rgba(255, 255, 255, 0.3);
  padding: 3em;
  height: 320px;
  border-radius: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  box-shadow: 20px 20px 40px -6px rgba(0, 0, 0, 0.2);
  text-align: center;
  position: relative;
  transition: all 0.2s ease-in-out;
}
form p {
  font-weight: 500;
  color: #fff;
  opacity: 0.7;
  font-size: 1.4rem;
  margin-top: 0;
  margin-bottom: 60px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}
form a {
  text-decoration: none;
  color: #ddd;
  font-size: 12px;
}
form a:hover {
  text-shadow: 2px 2px 6px #00000040;
}
form a:active {
  text-shadow: none;
}
form input {
  background: transparent;
  width: 200px;
  padding: 1em;
  margin-bottom: 2em;
  border: none;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 5000px;
  -webkit-backdrop-filter: blur(5px);
          backdrop-filter: blur(5px);
  box-shadow: 4px 4px 60px rgba(0, 0, 0, 0.2);
  color: #fff;
  font-family: Montserrat, sans-serif;
  font-weight: 500;
  transition: all 0.2s ease-in-out;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}
form input:hover {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 4px 4px 60px 8px rgba(0, 0, 0, 0.2);
}
form input[type=email]:focus, form input[type=password]:focus {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 4px 4px 60px 8px rgba(0, 0, 0, 0.2);
}
form input[type=button] {
  margin-top: 10px;
  width: 150px;
  font-size: 1rem;
}
form input[type=button]:hover {
  cursor: pointer;
}
form input[type=button]:active {
  background: rgba(255, 255, 255, 0.2);
}
form:hover {
  margin: 4px;
}

::-moz-placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

:-ms-input-placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

::placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

.drop {
  background: rgba(255, 255, 255, 0.3);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  border-radius: 10px;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 10px 10px 60px -8px rgba(0, 0, 0, 0.2);
  position: absolute;
  transition: all 0.2s ease;
}
.drop-1 {
  height: 80px;
  width: 80px;
  top: -20px;
  left: -40px;
  z-index: -1;
}
.drop-2 {
  height: 80px;
  width: 80px;
  bottom: -30px;
  right: -10px;
}
.drop-3 {
  height: 100px;
  width: 100px;
  bottom: 120px;
  right: -50px;
  z-index: -1;
}
.drop-4 {
  height: 120px;
  width: 120px;
  top: -60px;
  right: -60px;
}
.drop-5 {
  height: 60px;
  width: 60px;
  bottom: 170px;
  left: 90px;
  z-index: -1;
}

a,
input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: none;
}

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HTML

CSS

body {
  background: linear-gradient(45deg, #74fc46, #3F5EFB);
  height: 100vh;
  font-family: "Montserrat", sans-serif;
}

.container {
  position: absolute;
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
}

::-moz-placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

:-ms-input-placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

::placeholder {
  font-family: Montserrat, sans-serif;
  font-weight: 400;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

a,
input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: none;
}