p, a
{
    color: white;
    text-decoration: none;
}

.background_theme{
    background-color: #373a77;
}

.box_theme_flat{
    border-radius: 20px;
    background: #373a77;
    box-shadow:  6px 6px 20px #1c1d3c,
    -6px -6px 20px #5357b3;
}

.box_theme_concave {
    border-radius: 10px;
    background: linear-gradient(145deg, #32346b, #3b3e7f);
    box-shadow:  6px 6px 20px #1c1d3c,
                -6px -6px 20px #5357b3;
}

.box_theme_convex {
    border-radius: 10px;
    background: linear-gradient(145deg, #3b3e7f, #32346b);
    box-shadow:  6px 6px 20px #1c1d3c,
    -6px -6px 20px #5357b3;
}

.box_theme_press {
    border-radius: 10px;
    background: #373a77;
    box-shadow: inset 6px 6px 20px #1c1d3c,
    inset -6px -6px 20px #5357b3;
}

input {
    border-radius: 10px;
    background: #373a77;
    box-shadow: inset 3px 3px 20px #1c1d3c,
                inset -3px -3px 20px #5357b3;
}

.box_hoverable {
    box-shadow:  3px 3px 12px #1c1d3c,
                -3px -3px 12px #5357b3;
    -moz-transition:ease .5s;
    -o-transition:ease .5s;
    -webkit-transition:ease .5s;
    transition:ease .5s;
}

.box_hoverable:hover {
    box-shadow:  1px 1px 12px #1c1d3c,
                -1px -1px 12px #5357b3;
}