* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: "Montserrat", sans-serif;
    list-style-type: none;
    text-decoration: none;

    --primary-color: #4062b7;
    --usual-color: black;
    --next-usual-color: white;
    --obs-color: #d80000;

    --usual-size: 1em;
    --next-usual-size: .5em;
    --main-font-size: .9em;
}
/* HEADER */
header { margin: var(--usual-size); }

/* MAIN */
.container-project-fourth {
    height: 85vh;
    margin: var(--usual-size);
    border: 2px solid;
}
.container-project-general .container-project-fourth {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.btn-cta {
    border: 1px solid;
    background-color: transparent;
    cursor: pointer;
    padding: var(--next-usual-size);
}
.btn-cta:hover {
    background-color: var(--usual-color);
    color: var(--next-usual-color);
    transition: background-color .5s, color .5s;
}


/* CONVERSION */

.container-project-fourth {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.container-project-fourth form{
    text-align: center;
}
#title-h1 {
    margin-bottom: var(--next-usual-size);
}
#textbox {
    margin-bottom: var(--next-usual-size);
    /* font-size: 1.1em; */
}
.btn-test {
    margin-top: var(--usual-size);
}
.mt {
    margin-top: var(--usual-size);
}