body{
    font-family: Arial, Helvetica, sans-serif;
    background-color: rgb(249,249,249);
}
.collapsible {
    background-color: rgb(18,150,243);
    color: white;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 20px;
}

.active, .collapsible:hover {
    background-color: rgb(0,173,223);
}

.content {
    padding: 18px;
    display: none;
    overflow: hidden;
    background-color: white;
}

tr:nth-child(odd){
    background-color: rgb(180,180,180);
}

tr:nth-child(even){
    background-color: whitesmoke;
}

.topnav {
    position: -webkit-sticky; /* Safari */
    position: sticky;
    top: 0;
    overflow: hidden;
    background-color: white;
}

.topnav a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}

.topnav a.active {
    background-color: rgb(100,100,100);
    color: white;
}

.topnav a{
    cursor: pointer;
}

.topnav img{
    height: 50px;
}

.topnav .FinishBTN{
    position: absolute;
    right: 0px;
    background-color: rgb(18,150,243);
    color: white;
    font-size: 20px;
    height: 100%;
    border-radius: 12px;
}

td, tr{
    padding: 5px;
}

td input, td textarea{
    border: 1px solid black;
}