.avent{
	width: 90%;
	height: auto;
	margin: 30px auto;
	display: grid;
	grid-template-columns: repeat(auto-fill, 300px);
	justify-content: center;
	grid-gap: 10px;
	position: relative;
}
.avent-jour{
	width: 300px;
	height: 200px;
	background: linear-gradient(silver, white,white, silver);
	position: relative;
	color: rgb(0,102,153);
	cursor: help;
	border: 1px solid white; 
	border-radius: 2px; 
	box-shadow: 3px 3px 3px white;
}
.avent-gauche{
	background-image: url("img/calendrier_rideau.jpg");
	/*filter: opacity(80%);*/
	filter: grayscale(30%);
	background-size: cover;
	background-repeat: no-repeat;
	font-size: 20px;
	color: rgba(0,102,153);
	width:150px ;
	height: 200px;
	position: absolute;
	transition: 
		width 0.3s 6s ease-in-out, 
		border-radius 0.3s 6s ease-in-out, 
		color 0.1s 6s ease-in-out;
	display: flex;
	flex-direction: row;
	justify-content: end;
	align-items: flex-end;
	padding-right: 5px;
}
.avent-jour:hover .avent-gauche{
	width: 10px;
	border-radius: 0px 0px 100px 0px;
	color: transparent;
	transition: 
		width 0.3s 0.4s ease-in-out, 
		border-radius 0.3s 0.2s ease-in-out, 
		color 0.1s 0.3s ease-in-out;
}
.avent-droit{
	background-image: url("img/calendrier_rideau.jpg");
	/*filter: opacity(80%);*/
	filter: grayscale(30%);
	background-size: cover;
	background-repeat: no-repeat;
	background-position: right;
	/*content: "\2771";*/
	color: rgba(0,102,153);
	font-size: 20px;
	width:150px ;
	height: 200px;
	right: 0px;
	position: absolute;
	transition: 
		width 0.3s 6s ease-in-out, 
		border-radius 0.3s 6s ease-in-out, 
		color 0.1s 6s ease-in-out;
	top: 0px;
	display: flex;
	flex-direction: row;
	justify-content: start;
	align-items: flex-end;
	padding-left: 5px;
}

.avent-jour:hover .avent-droit{
	width: 10px;
	border-radius: 0px 0px 0px 100px;
	color: transparent;
	transition: 
		width 0.3s 0.4s ease-in-out, 
		border-radius 0.3s 0.2s ease-in-out, 
		color 0.1s 0.3s ease-in-out;
}
.avent-numero{
	position: absolute;
	top: 10px;
	left: 10px;
	height: 25px;
	width: 25px;
	border-radius: 50%;
	background-color: yellow;
	text-align: center;
	line-height: 25px;
	z-index: 5;
	font-weight: bold;
}
.avent-citation{
	padding: 15px;
	height: 100%;
	display: flex;
	color: rgb(0,102,153);
	text-align: center;
	flex-direction: column;
	justify-content: center;
}