div.error_400{
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.error_400 .message{
    display: flex;
    justify-content: center;
}

.error_400 .erreur {
    font-family: "Courier New";
    font-size: 36px;
    font-weight: bold;
    line-height: 36px;
    margin-left: 15px;
    color: #4D4D4D;
}

.error_400 .number {
    font-size: 81px;
    font-weight: bold;
    line-height: 81px;
    margin-left: 15px;
}

.error_400 .missing_page {
    color: #000000;
    font-family: Lato;
    font-size: 19px;
    line-height: 19px;
    margin-left: 15px;
    margin-bottom: 11px;
}

.error_400 .back {
    font-family: Lato;
    font-size: 15px;
    line-height: 15px;
    color: #CF4A15;
    margin-left: 15px;
    text-decoration: none;
}

div.error_500{
    height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.error_500 .erreur {
    color: #000000;
    font-family: Lato;
    font-size: 19px;
    font-weight: 500;
    text-align: center;
    margin-top: 26px;
    margin-bottom: 18px;
}

.error_500 .message {
    color: #7D7D7D;
    font-family: Lato;
    font-size: 15px;
    text-align: center;
}

.error_500 .back {
    margin-top: 35px;
    margin-left: 15px;
}

.error_500 .back a{
    font-family: Lato;
    font-size: 15px;
    line-height: 15px;
    color: #CF4A15;
    text-decoration: none;
}