style.css

/* Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap");

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #4070f4;
}

/* Container */
.container {
  position: relative;
  max-width: 370px;
  width: 100%;
  padding: 25px;
  border-radius: 8px;
  background-color: #fff;
}

/* Main Childs */
.container header {
  font-size: 22px;
  font-weight: 600;
  color: #333;
}
.container form {
  margin-top: 30px;
}

/* Form */
form .field {
  margin-bottom: 20px;
}
form .input-field {
  position: relative;
  height: 55px;
  width: 100%;
}
.input-field input {
  height: 100%;
  width: 100%;
  outline: none;
  border: none;
  border-radius: 8px;
  padding: 0 15px;
  border: 1px solid #d1d1d1;
}
.input-field .show-hide {
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: #919191;
  cursor: pointer;
  padding: 3px;
}
.field .error {
  display: flex;
  align-items: center;
  margin-top: 6px;
  color: #d93025;
  font-size: 13px;
  display: none;
}
.error .error-icon {
  margin-right: 6px;
  font-size: 15px;
}

/* icon in create password field */
.create-password .error {
  align-items: flex-start;
}
.create-password .error-icon {
  margin-top: 4px;
}

/* Submit Button */
.button {
  margin: 25px 0 6px;
}
.button input {
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  background-color: #4070f4;
  cursor: pointer;
  transition: all 0.3s ease;
}
.button input:hover {
  background-color: #0e4bf1;
}

/* Invalid */
.invalid input {
  border-color: #d93025;
}
.invalid .error {
  display: flex;
}

/* Media Queries */
/* For Screens lesser than 375px */
@media (max-width: 375px) {
  .container {
    max-width: 310px;
  }
}