/* gray: rgb(200, 200, 200) */
/* white: #FFF */
/* blue: rgb(0, 0, 160) */
/* black (text): rgb(50, 50, 50) */
/* gray (border): rgb(140, 140, 140) */

* {
    font-family: sans-serif;
}

body {
    background-color: rgb(200, 200, 200);
}

main {
    position: relative;
}

.window {
    background-color: white;
    position: absolute;
    padding: 0px 30px 30px 30px;
    border: 3px solid rgb(140, 140, 140);
}

.window .heading {
    margin: 0 -30px 20px;
    background-color: rgb(0, 0, 160);
    color: white;
    padding: 8px 10px;
    text-align: center;
    font-size: 1.25em;
    font-weight: normal;
    border-bottom: 3px solid rgb(140, 140, 140);
}

.window *:not(.heading) {
    color: rgb(50, 50, 50);
    text-decoration: none;
}

.window#main {
    top: 120px;
    left: 13%;
    width: 50%;
    min-height: 400px;
}

.window#programs {
    top: 50px;
    left: 31%;
    width: 40%;
    height: 300px;
}

.window#about {
    min-width: 250px;
    display: none;
    top: 350px;
    left: 30%;
}

.link {
    margin-top: 10px;
    max-width: 100px;
    text-align: center;
    float: left;
    margin-right: 30px;
    cursor: pointer;
    margin-bottom: 20px;
    border: 0;
    background-color: transparent;
    font-size: 1em;
}

.link img {
    display: inline-block; 
    width: 65px;
    height: 65px;
    background-color: white;
    margin-bottom: 5px;
}

.button {
    border: 2px solid rgb(200, 200, 200);
    border-bottom: 2px solid rgb(140, 140, 140);
    border-right: 2px solid rgb(140, 140, 140);
    background-color: transparent;
    font-size: 1em;
    padding: 5px 10px;
    border-radius: 5px;
    min-width: 100px;
    text-align: center;
    cursor: pointer;
}


@media screen and (max-width: 650px) {

    main {
        width: 98%;
    }

    .window#main {
        top: 50px;
        left: 5%;
        width: 75%;
    }

    .window#programs {
        top: 205px;
        left: 20%;
        width: 67%;
    }

    .link {
        width: 90px;
    }

    .window#about {
        top: 320px;
    }

}

@media screen and (max-width: 450px) {

    .window#main {
        left: 5%;
        width: 72%;
    }

    .window#programs {
        top: 205px;
        left: 20%;
        width: 63%;
    }

}

@media screen and (max-width: 500px) {

    .window#about {
        left: 12%;
    }
}


@media screen and (max-width: 400px) {

    .window#about {
        left: 1%;
    }
}