#triangle-frott  {
	width: 100px; /* Largeur du triangle */
	height: 100px; /* Hauteur du triangle */
	position: relative;
	border: 1px solid black;
	border-top: 0;
	border-right: 0;
}
#angleRangeFrott {
	appearance: auto;
	cursor: pointer;
	margin: 2px;
}
#lineABFrott  {
	position: absolute;
	top: 0;
	left: 0;
	height: 0;
	border-top: 1px solid black;
	transform-origin: bottom left;
	transform: rotate(45deg);
}
.point {
	position: absolute;
	font-size: 14px;
}
#pointAFrott {
	right: -10px;
	bottom: -10px;
}
#pointBFrott {
	top: -10px;
	left: -10px;
}
#pointCFrott  {
	bottom: -10px;
	left: -10px;
}
.angle {
	position: absolute;
	font-size: 14px;
	color: blue;
}
#angleAlphaFrottLabel  {
	bottom: -2px;
	right: 20px;
}	
.popup {
	display: none;
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background-color: #f9f9f9;
	padding: 20px;
	border: 1px solid #ccc;
	border-radius: 5px;
	z-index: 9999;
}
.alpha-calculation {
	display:flex;
}
@media only screen and (max-width: 600px) {
	.alpha-calculation {
		display: inline;
	}
}