* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	font-family: sans-serif;
	background: #b2e0e654;background-position:  center;
	background: url(https://thumbs.dreamstime.com/z/creative-%D1%81olorful-blocks-fractions-yellow-background-interesting-funny-math-kids-education-back-to-school-concept-geometry-155687638.jpg);
	background-repeat: no-repeat;
	background-attachment: all;
	transition: 1s ease;
}
.clr {
	clear: both;
}
#nav {
	background: transparent!important;
	color: #fff!important;
	font-family: cursive;
	letter-spacing: 1px;
	font-size: 27px!important;
}
.navbar-brand {
	font-size: 35px;
	margin: 10px 50px 10px 10px;
	text-shadow: 0px 0px 4px #222;
	font-weight: bold;
	transition: 0.3s ease;
}
.navbar-brand:hover {
	text-shadow: 0px 2px 7px #222;
}
.nav-link {
	color: #fff!important;
	text-shadow: 0px 0.5px 4px #222;
	margin: 0px 15px;
	font-weight: 800;
	letter-spacing: 1.2px;
	transition: 0.3s ease;
}
.nav-link:hover {
	text-shadow: 0px 2px 7px #222;
	color: #9cb0b7!important;
}
.navbar-toggler {
	outline: none!important;
	transition: 0.3s ease;
	font-size: 16px;
	border: 1px solid #e8f0f3!important;
}
.navbar-toggler:hover {
	background: #e8f0f3ab;
}
/*  NAVBAR End  */

/*  MAIN  */ 
#hiddenNumber {
	opacity: 0;
	color: #00ff08;
	margin: 50px 0px -10px;
	font-size: 150px;
	font-weight: 700;
	text-align: center;
	letter-spacing: 7px;
	text-shadow: 0px 2px 10px #222;
	transition: 2s ease;
}
.numb {
	width: 50%;
	display: inline-block;
	float: left;
}
.fa-check {
	float: left;
}
.myBlock {
	display: inline-block;
	width: 50%;
	float: left;
}
h3 {
	color: blue;
	font-size: 40px;
	line-height: 60px;
	font-family: cursive;
	letter-spacing: 3px;
	padding: 20px 15px;
	text-shadow: 0px 1px 4px #222;
}

label {
	width: 50%;
	display: inline-block;
	float: left;
}
#inputNum {
	width: 300px;
	height: 150px;
	float: left;
	border: 2px solid #cbaf27;
	background: #fff3f3;
	border-radius: 50px;
	font-size: 130px;
	font-weight: 700;
	padding: 10px 20px; 
	color: #f30505;
	transition: 2s ease;
	box-shadow: 0px 20px 40px rgba(0, 0, 0, 0.4);
	outline: none;
}
button {
	font-size: 23px;
	padding: 10px 20px;
	letter-spacing: 2px;
	font-weight: 800;
	font-family: cursive;
	background: transparent;
	transition: 0.3s ease;
	outline: none!important;
	border-radius: 6px;
}
#btnCheck {
	margin: 20px 50px 10px;
	border: 1px solid #f13c02;
	color: #f13c02;
}
#btnCheck:hover {
	color: #fff;
	background: #f13c02;
	cursor: pointer;
	box-shadow: 0px 2px 9px #777;
}
#next {
	margin: 10px 50px;
	border: 1px solid #224b9c;
	float: left;
	color: #224b9c;
}
#next:hover {
	color: #fff;
	background: #224b9c;
	box-shadow: 0px 2px 9px #777;
}
#hint {
	border-radius: 9px;
	color: red;
	font-size: 32px;
	font-weight: 800;
	font-family: cursive;
	letter-spacing: 1px;
	padding: 20px 0px;
	text-align: center;
}
#aftor {
	width: 50px;
	height: 20px;
	background: rgba(255, 255, 255, 0.8);
	color: #222;
	letter-spacing: 1px;
	font-size: 15px;
	text-decoration: none!important;
	padding: 5px 10px;
}
a:hover {
	color: #0056b3!important;
}

/*  --- RESPONSIVE ---  */
/*  Tablet  */
@media only screen and (max-width: 1023px) {
body {
	overflow-x: hidden!important;
}
/* MAIN */

#hiddenNumber {
	margin: 80px 0px 0px;
	font-size: 130px;
	letter-spacing: 5px;
}
h3 {
	line-height: 50px;
	letter-spacing: 2px;
	padding: 20px 15px;
}
#btnCheck {
	margin: 40px 50px 10px;
}
#hint {
	font-size: 30px;
	padding: 10px 0px;
}

/* MAIN End */
}
/*  Tablet End  */

/*  Mobile  */
@media only screen and (max-width: 767px) {
/*  NAVBAR */
#nav {
	background: rgba(0, 0, 0, 0.6)!important;
	font-size: 24px;
}
.navbar-brand {
	color: #fbff00!important;
	font-size: 30px;
	margin: 5px 70px 5px 5px;
}.navbar-togler {
	font-size: 15px;
	margin: 0px 10px;
}
.nav-link {
	font-size: 22px;
}
/*  NAVBAR End */

/* MAIN */
#hiddenNumber {
	margin: 80px 0px 0px;
	font-size: 100px;
}
.myBlock {
	width: 90%;
	display: block;
	float: none;
}
h3 {
	font-size: 30px;
	line-height: 40px;
	letter-spacing: 1px;
	padding:  0px 10px;
}
label {
	width: 90%;
	margin: 0 auto;
	display: block;
	float: none;
}
#inputNum {
	width: 100%;
	height: 150px;
	float: none;
	font-size: 100px;
}
button {
	font-size: 20px;
	padding: 10px 25px 9px;
}
#next {
	margin: 10px 50px 50px;
}
#hint {
	font-size: 25px;
	padding: 15px 0px;
}
/* MAIN End */
}
/*  Mobile End  */

/*  --- RESPONSIVE End ---  */