*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: sans-serif;
    background-image: linear-gradient(0.25turn, red, yellow, green);
}

#wrapper {
    padding: 50px;
    border-radius: 30px;
    background-image: linear-gradient(0.25turn, red, yellow, green);
    box-shadow: 10px 10px 10px;
}

#chrono {
    text-align: center;
    font-size: 100px;
    margin-bottom: 30px;

}

button{
    font-size: 25px;
    width: 150px;
    padding: 10px;
    border: none;
    border-radius: 15px;
    box-shadow: 10px 10px 10px;
    cursor: pointer;
}

button:hover{
    transform: scale(1.1);
}

button:not(:last-child) { /* Tous les boutton sauf le dernier */
    margin-right: 15px;
}

button:first-child {
    background-color: red;
    font-weight: bold;
}

button:nth-child(2) {
    background-color: rgb(249, 249, 27);
    font-weight: bold;
}

button:last-child {
    background-color: green;
    font-weight: bold;
}

h1{
    text-align: center;
    margin-bottom: 60px;
    border: 8px ridge grey ;
    border-radius: 30px;
    padding: 10px;
    font-size: 40px;
}

h3{
    display: flex;
    justify-content:  end;
    margin-top: 50px;
    margin-bottom: 0;
    font-style: italic;
    text-shadow: 3px 5px 5px;
}