html,
body {
    width: 100%;
    height: 100%;
}

body {
    margin: 0;
    background-color: white;
    display: flex;
    flex-direction: column;
}

a {
    --color-underline: blue;
    color: var(--color-underline);
    background: linear-gradient(to right, var(--color-underline), var(--color-underline)) no-repeat;
    background-position: left bottom;
    background-size: 0px 2px;
    transition: .3s;
    text-decoration: none;
    /* text-underline-offset: 0.2em; */
}
a:hover {
    background-size: 100% 2px;
    text-decoration: none !important;
}


.copyright {
    text-align: center;
    color: black;
}