body{
    text-align: center;
    background-color:#088F94;
    font-family: Courier, Arial, Helvetica, sans-serif;
    
}

p {
	color: #676680
}

h1 {
    border: solid 2px #CCCCCC;
    padding: 10px;
    margin-bottom: 40px;
    border-radius: 10px;
    background-color: #FEFDEF;
    color: #4a495e;
	text-decoration: underline;
}

h2, h3 {
    color: #4a495e;
    padding: 10px;
    border-radius: 10px;
}

h2 {
	text-decoration: underline;
}


.learning-bloc {
    border: solid #CCCCCC 2px;
    padding: 10px;
    margin-bottom: 60px;
    background-color: #FEFDEF;
    border-radius: 40px;

}
.numbers-img {
    width: 60vw;
    height: 50vh;
}

.bloc-practicing {
    padding: 10px;
    border: solid #CCCCCC 3px;
    margin-bottom: 60px;
    background-color: #FEFDEF;
    border-radius: 40px;
}

.explanations {
	text-align: justify;
	}
.error {
	color: red;
}

footer {
    background-color: #FEFDEF;
    padding: 15px 30px;
    border-top: 1px solid lightblue;
  }



.generator-button {
	box-shadow: 0px -1px 14px -7px #276873;
	background:linear-gradient(to bottom, #599bb3 5%, #408c99 100%);
	background-color:#599bb3;
	border-radius:42px;
	border:2px solid #29668f;
	display:inline-block;
	cursor:pointer;
	color:#FEFDEF;
	font-family:Courier, Arial;
	font-size:15px;
	font-weight:bold;
	padding:5px 76px;
	text-decoration:none;
	text-shadow:0px 1px 0px #3d768a;
}
.generator-button:hover {
	background:linear-gradient(to bottom, #408c99 5%, #599bb3 100%);
	background-color:#408c99;
}
.generator-button:active {
	position:relative;
	top:1px;
}

.button-verificator {
	box-shadow: 0px -1px 14px -7px #276873;
	background:linear-gradient(to bottom, #599bb3 5%, #408c99 100%);
	background-color:#599bb3;
	border-radius:42px;
	border:2px solid #29668f;
	display:inline-block;
	cursor:pointer;
	color:#FEFDEF;
	font-family:Courier, Arial;
	font-size:15px;
	font-weight:bold;
	padding:5px 20px;
	text-decoration:none;
	text-shadow:0px 1px 0px #3d768a;
}
.button-verificator:hover {
	background:linear-gradient(to bottom, #408c99 5%, #599bb3 100%);
	background-color:#408c99;
}
.button-verificator:active {
	position:relative;
	top:1px;
}