* {box-sizing:border-box;}

body {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: 'Source Sans Pro', Arial, Helvetica, sans-serif;
    text-align: center;
    background: rgb(245, 245, 245);
    color: rgb(35, 35, 35);
}

h1 {
    font-family: 'Lora', Georgia, 'Times New Roman', Times, serif;
    font-weight: 600;
    margin:  15px 0 10px 0;
}

h2 {
    font-family: 'Lora', Georgia, 'Times New Roman', Times, serif;
    margin:  0 0 10px 0;
}

h3 {
    font-family: 'Lora', Georgia, 'Times New Roman', Times, serif;
    color: rgb(100, 100, 100);
    margin:  0 0 10px 0;
    font-weight: normal;
}

li {
    margin-bottom: 10px;
}

a {
    color: rgb(35, 35, 35);
}

img {
    width: 100%;
}

form {
    margin: 0 auto;
}

input {
    background: rgb(250, 250, 250);
    border: 1px solid rgb(200, 200, 200);
    padding: 3px 3px 3px 3px;
    border-radius: 3px;
    box-shadow: 0 0 5px 3px rgb(134, 134, 134, .06);
}

input:invalid {
    border: 1px solid rgb(128, 0, 0);
}

textarea:invalid {
    border: 1px solid rgb(128, 0, 0);
}

form .name {
    width: 100%;
}

form .name input{
    margin: 0 auto 5px auto;
    width: 49%;
}

form .name #form_last_name {
    margin: 0 0 0 1px;
}

form .email input {
    margin: 0 0 5px 0;
    width: 99%;
}

form .comment textarea {
    margin: 0 0 5px 0;
    height: auto;
    width: 99%;
    background: rgb(250, 250, 250);
    border: 1px solid rgb(200, 200, 200);
    padding: 3px 3px 3px 3px;
    border-radius: 3px;
    box-shadow: 0 0 5px 3px rgb(134, 134, 134, .06);
}

button {
    margin: 0 0 5px 0;
    background: rgb(230, 230, 230);
    border: 1px solid rgb(200, 200, 200);
    padding: 3px 3px 3px 3px;
    border-radius: 3px;
    box-shadow: 0 0 5px 3px rgb(134, 134, 134, .06);
}

button:hover {
    background: rgb(200, 200, 200);
}

.container{
    max-width: 540px;
    min-height: 100vh;
    padding: 0 5px 0 5px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header {
    display: flex;
    flex: .2;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    align-items: center;
}

.main {
    flex: 1;
    text-align: justify;
}

.footer {
    width: 100%;
    display: block;
    margin: 20px 0 20px 0;
}

.legal {
    font-size: 11px;
    text-align: justify;
}

.copyright {
    margin: 20px 0 0 0;
    font-size: .8em;
}

@media only screen and (max-width: 480px) {
    h1 {
        font-size: 1.7em;
    }
    
    h2 {
        font-size: 1.3em;
    }
    
    h3 {
        font-size: 1.1em;
    }
    .nav {
        font-size: .9em;
    }
    p {
        font-size: .9em;
    }
    .copyright {
        font-size: .7em;
    }
    .container{
        max-width: 540px;
        min-height: 100vh;
        padding: 0 10px 0 10px;
        flex: 1;
        display: flex;
        flex-direction: column;
  }
}