main.css

body
{
  background-color: #3f94e7;
  padding: 60px 0 0;
  margin: 0;

}

h1
{
    font-family: "Roboto", helvetica, sans-serif;
    text-align: center;
}

img
{
  height: 35px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* signup Form */
  .signup-form {
    border-radius: 3px;
    width: 400px;
    margin: 0 auto;
    padding: 40px;
    background: white;

}

.signup-form legend {
  width: 100%;
  line-height: 38px;
  font-size: 35px;
  font-weight: 300;
  color: #565656;
  text-align: center;
  letter-spacing: 0;
  margin: 0 auto 45px;
}

/* Input declarations */
input[type="email"],
input[type="password"],
button[type="submit"] {
  display: block;
  width: 320px;
  height: auto;
  font-size: 18px;
  text-align: left;
  padding: 15px;
  border: 2px solid #e7e7e7;
  border-radius: 3px;
  background: #fcfcfc;
  margin: 10px auto 20px;
  transition: opacity 0.4s;
}

button[type="submit"] {
  height: auto;
  font-size: 22px;
  font-weight: 500;
  text-align: center;
  color: white;
  background: #15CD72;
  border: 0;
  cursor: pointer;
  margin-bottom: 0;

}
/* footer */
.footer {
  text-align: center;
  color: white;
  margin: 20px auto;
  font-weight: 600;
  border: 0;
  padding: 0;
}

.footer a {
  color: white;
}

.footer a:hover {
  color: #E7F1F9;
}