body,a{
  color: #000;
}

#colourSelector{
    line-height: 26px; 
    width: 480px;
}
#colourSelector .colourOption{
    margin-right: 4px; 
    margin-top: 4px;
    display: inline-block; 
    line-height: 26px; 
    height: 26px; 
    width: 50px; 
    border: 1px solid #000; 
    text-align:center;
}
#colourSelector .colourOption input{
    vertical-align: middle; 
    margin:0; 
    padding: 0;
}
.form-center {
    display:flex !important;
    justify-content: center !important;
    padding-top:100px;
    margin: 10px;
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}
input[type="text"],
  input[type="password"] {
    width: 70%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    margin-bottom: 20px;
  }
button[type="submit"] {
    display: block;
    width: 50%;
    padding: 10px;
    background-color: #333;
    color: #fff;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    margin-left:100px;
  }
  
  button[type="submit"]:hover {
    background-color: #555;
  }