#logo
{
    font-size: 180%;
    width: 100%;
    text-align: center;
    background-color: lightgrey;

}

#menu
{
    float: left;
    width: 25%;
    border-right: 1px solid black;
}

#menu button
{
    width: 100%;
    padding: 7%;
    border: none;
    border-radius: 5px;
    background-color: red;
    cursor: pointer;
}

#content
{
    float: left;
    width: 49.5%;
    background-color: aqua;
    border-right: 1px solid black;
}

#sidebar
{
    float: left;
    width: 25%;
    background-color: lime;
}

#footer
{
    width: 94%;
    text-align: center;
    padding: 3%;
    font-size: 85%;
    background-color: grey;
    border: 1px solid black;
}