main{
    min-height: 50vh;
	display: flex;
	justify-content: center;
	align-items: center;
}
.cercles{
    position: relative;
	width: 60px;
	height: 60px;
	animation: anim-loader linear 1s infinite;
}
.cercleBLeu{
    position: absolute;
	width: 60px;
	height: 60px;
	border-radius: 50%;
    border : 3px solid blue;
}

.cercleRouge{
    position: absolute;
	width: 60px;
	height: 60px;
	border-radius: 50%;
    border : 3px solid red;
    animation: anim-loader linear 1s infinite;
    top:5px;
	left:5px;

}

.cercleJaune{
    position: absolute;
	width: 60px;
	height: 60px;
	border-radius: 50%;
    border : 3px solid yellow;
    top: -5px;
	left: 5px;
}

@keyframes anim-loader {
	0% {
		transform: rotate(0deg);
	}
	
	100% {
		transform: rotate(360deg);
	}
}