styles.css

* {box-sizing: border-box}

  input[type=text], input[type=password] {
  width: 100%;
  padding: 5px;
  margin: 5px 0 22px 0;
  display: inline-block;
  border: none;
  background: #f1f1f1;
}


input[type=text]:focus, input[type=password]:focus {
  background-color: #ddd;
  outline: none;
}
label{
  color:purple;
}
h1{
  color:purple;
}
p{
  color:purple;
}
input[type="checkbox"]:checked + label{
  color:purple;
}


button {
  background-color: purple;
  color: white;
  padding: 10px 10px;
  margin: 8px 0;
  border: none;
  cursor: pointer;
  width: 10%;
  opacity: 0.9;
}

button:hover {
  opacity:1;
}


.cancelbtn {
  padding: 10px 10px;
  background-color: purple;
}
.signup {
    float: right;
    width: 10%;

}


.cancelbtn, .signupbtn {
  float: left;
  width: 10%;
}


.container {
  padding: 16px;
}


.modal {
  display: none; 
  position: fixed; 
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%; 
  overflow: auto; 
  background-color: #474e5d;
  padding-top: 50px;
}


.modal-content {
  background-color: #fefefe;
  margin: 5% auto 15% auto; 
  border: 1px solid #888;
  width: 50%;
}


hr {
  border: 1px solid #f1f1f1;
  margin-bottom: 25px;
}



.clearfix::after {
  content: "";
  clear: both;
  display: table;
}

@media screen and (max-width: 300px) {
  .cancelbtn, .signupbtn {
    width: 100%;
  }
}