*{
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
}
:root{
    --first-color:#2196F3;
    --second-color:#FFF176;
    --third-color:#9E8E00;
    --fourth-color:#407CAC;
    --fifth-color:#A5D6A7;
    --sixth-color:#407CAC;
    --answer-color1:#36FF62;
    --answer-color2:#DFD263;
    --answer-color3:#F64D4D;
}