user.css

*
{
    background-color: aquamarine;
}

div
{
    width: 47vw;
    height: 90vh;
    background-color: white;
}

#top
{
    height: 20px;
    background-color: aquamarine;
    padding-bottom: 1vh;
}

button
{
    background-color: whitesmoke;
}

input
{
    background-color: white;
}

form
{
    float: right;
    padding-right: 30vw;
}

form#info
{
    background-color: white;
}

form#info>button, form#info>input
{
    margin-bottom: 1vh;
}

.table
{
    display: table;
    margin: 0 auto;
    height: 4vh;
}

.tab-content
{
    display: none;
    height: 86vh;
}

.tab-content:target
{
    display: block;
}

a:link
{
    text-decoration: none;
}

a:visited
{
    text-decoration: none;
}

a:hover
{
    text-decoration: none;
}

a:active
{
    text-decoration: none;
}