body{
    background-color: black;
    text-align: center;
}
.header{
    background-color: blueviolet;
}
.mainContent{
    background-color: chocolate;
    padding-bottom: 20px;
}
.inputs{
    background-color: yellow;
    border: 3px solid green;
}
.checkboxes{
    background-color: aqua;
    border: 3px solid green;
}