body{
    background-color: lightcyan;
}

.w3-container.w3-threequarter{
    background-color: white;
    border: 1px #1e1e1e;
    min-height: available;
    padding-bottom: 2rem !important;
}
body, html, .w3-container.w3-threequarter{
    min-height: 90vh;
}
.w3-hide>.w3-container{
    text-align: left;
    border: 2px black solid;
}
.w3-button.w3-block{
    margin-top: .2rem;
    margin-bottom: .2rem;
    border: 2px black solid;
}