light_theme.css

@import url('https://fonts.googleapis.com/css?family=Montserrat');
@import url('https://fonts.googleapis.com/css?family=Fira+Mono:400,500');

*{
	box-sizing: border-box;
	margin:0;
	padding:0;
	font-family: 'Montserrat', sans-serif;
}

*:focus{
	outline:none;
}

.body{
	background-color: white;
}

/* This is the introductory heading */
.box-heading{
	text-align: center;
	color: black;
	padding:2em 0 1em;
}

/* This is the form */
.box{
	text-align:center;
}

.textArea{
  width: 100%;
}

/* This is the textarea */
#captchaCode{
    display: block;
    margin-left: auto;
    margin-right: auto;
    background-color: #282A36;
    color: white;
   	padding:2em;
   	font-family: 'Fira Mono', monospace;
    font-size: 1em;
    height:20em;
    border:none;
	border-radius:3px;
}

hr{
	width:50%;
	height:2px;
	border:none;
	background:#ccc;
	margin:10px auto;
}

/* Error messages if any */
#errorMessg{
  text-align: center;
  font-size: 1em;
  color: #F44336;
  font-weight: bold;
  padding:15px 0 5px;
}

/* These are the buttons */
.submit{
	border-radius: 3px;
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    color: rgba(0,0,0,0.7);
    background-color: white;
    border: 2px solid rgba(0,0,0,0.1);
    padding: 10px 30px;
    font-size: 0.9em;
    font-weight: bold;
    transition: border-color 120ms ease-in, color 120ms ease-in-out, background-color 200ms;
    cursor:pointer;
}

.submit:not(.disabledSubmit):hover{
	color:rgba(0,0,0,0.9);
	border-color:rgba(0,0,0,0.3);
}

.disabledSubmit {
	background-color: #f44336;
	cursor:not-allowed;
}

.notDisabledSubmit{
	background-color: #8bc34a;
}