body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
}

main {
    padding: 20px;
}

#illustration img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

#links {
    margin-top: 20px;
}

#links h2 {
    color: #333;
}

#links ul {
    list-style: none;
    padding: 0;
}

#links ul li {
    margin-bottom: 10px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
}


body {
    color: black;
    background-color: rgba(17, 17, 17, 0.151);
    background-size: auto;
    background-position: top;
    background-repeat: no-repeat;
    font-family: Arial, Helvetica, sans-serif;
}

h1 {
    /*Paragraphe*/
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;;
}

h2 {
    margin-right: 15px;
    font-style: black;
}

.centerFlexBox {
    /*Display*/
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

header {

    /*Background*/
    background-color: rgba(92, 92, 92, 0.5);

    /*Margin*/
    margin-bottom: 12px;

    /*Padding*/
    padding: 15px;

    /*Border*/
    border-radius: 15px;
    border-color: transparent;
    border-width: 0px;
}

footer {
    position: fixed;
    padding-left: 15px;
    padding-right: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.img_icon {
    width: 32px;
    height: 32px;
    margin-right: 15px;
}

.exerciceTitle {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    background-color: #a03c45;
    padding-left: 15px;
    border-radius: 15px;
    border-color: transparent;
    border-width: 0px;
    margin: 15px;
    padding:5px;
    width: auto;
    height:50px;

}

.exercices {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-right: 10%;
    margin-left: 10%;
}

.exerciceRef {
    background-color: #ff4655;
    font-style: italic;
    border-radius: 15px;
    padding: 10px;
    color: black;
}

#projet{
    background-color: #ff4655;
    text-align: center;
    font-size: 36px;
    font-style: italic;
    border-radius: 15px;
    padding: 10px;
    color: black;
    margin-top: 3%;
    margin-left: 10%;
    margin-right: 10%;

}