how to make subscribe email in html css

HTML

 


  
  

head
body
    
     form class="form">
     span class="title">Subscribe Alex Site /span
     p class="description"> /p
     div
     input id="email-address" name="email" type="email" />
     button type="submit">Subscribe button
     div
     form

     body
    html

       

CSS

    
  .form {
  display: flex;
  flex-direction: column;
  background: #606c88;
  background: -webkit-linear-gradient(to right, #3f4c6b, #306c88);
  background: linear-gradient(to right, #1f4c6b, #306c88);
  padding: 20px;
  border-radius: 10px;
  max-width: 350px;
}

.title {
  font-size: 2rem;
  line-height: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #fff;
}

.description {
  line-height: 1.5rem;
  font-size: 1rem;
  margin-top: 1rem;
  color: rgb(209 213 219);
}

.form div {
  display: flex;
  max-width: 28rem;
  margin-top: 1rem;
  column-gap: 0.5rem;
}

.form div input {
  outline: none;
  line-height: 1.5rem;
  font-size: 0.875rem;
  color: rgb(255 255 255 );
  padding: 0.5rem 0.875rem;
  background-color: rgb(255 255 255 / 0.05);
  border: 1px solid rgba(253, 253, 253, 0.363);
  border-radius: 0.375rem;
  flex: 1 1 auto;
}

.form div input::placeholder {
  color: rgb(216, 212, 212);
}

.form div input:focus {
  border: 1px solid rgb(99 102 241);
}

.form div button {
  color: #fff;
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.25rem;
  padding: 0.625rem 0.875rem;
  background-color: rgb(99 102 241);
  border-radius: 0.375rem;
  border: none;
  outline: none;
}