body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    color: #5A5A58;
}

main {
    height: 79vh;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: center;
}

.presentation {
    width: 40vw;
    height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
}

main h1, main h4 {
    text-align: center;
    margin: 0;
}

.cadre_orange {
    border-style: solid;
    border-width: 1px;
    border-radius: 10px;
    border-color: #BD212F;
    width: 40vw;
    height: 50vh;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

.form_index {
    display: flex;
    width: 30%;
    height: 70%;
    justify-content: center;
    align-items: center;
}

#vertline {
    background-color: #BD212F;
    width: 1px;
    height: 90%;
}

.formulaire {
    display: flex;
    height: 100%;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    
}

#goto_contact {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 2em;
}

#goto_contact a {
    text-decoration: none;
    color: white;
}

.btn_orange {
    background-color: #BD212F;
    color: white;
    font-size: large;
    border: none;
    border-radius: 6px;
    width: 80%;
    cursor: pointer;
}

@media screen and (max-width:840px) {
    main {
        height: 73vh;
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
    }
    
    .presentation {
        width: 90vw;
        height: 30vh;
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
    }
    
    main h1, main h4 {
        text-align: center;
        margin: 0;
    }
    
    .cadre_orange {
        border-style: solid;
        border-width: 1px;
        border-radius: 10px;
        border-color: #BD212F;
        width: 90vw;
        height: 30vh;
        display: flex;
        justify-content: space-evenly;
        align-items: center;
    }
    
}