body{
    padding: 10px;
}
.hidden{
    display: none;
}
.show{
    position:fixed;
    top: 0;
    right: 0;
    background-color: aquamarine;
    display:inline-table;
}
.showdiv{
    position:fixed;
    top: 0;
    right: 0;
    background-color: aquamarine;
    display:inline-table;
    width: 100%;
    height: 100%;
}
table {
    width: 100%;
    border-collapse: collapse;
    border: 2px;
}
th, td {
    padding: 3px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
.th1 {
    width: 40%;
    background-color: #c3c6c2;
}
.th2 {
    width: 15%;
    background-color: #c3c6c2;
}
form{
    display:grid;
    grid-template-columns: 200px 1fr;
    grid-gap:2px
}
label {
    grid-column: 1 / 2;
}
input,
button {
    grid-column: 2 / 3;
}