body {
    font-family: "Space Mono", Arial, serif;
}

#sidebar {
    background-color: orange;
    height: 100%;
    /* max-width: 20%; */
  /* width: 160px; */
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  overflow-x: hidden;
  padding-top: 20px;
}

#content {
    background-color: orchid;
    height: 1000px;
    /* max-width: 80%; */
    z-index: 0;
    margin-left: 16.666667%;
}

.banner {
    width: 100%;
    height: 790px;
    background-color: #252A34;
    text-align: center;
    padding-top: 13%;
    color: whitesmoke;
}

img {
    width: 180px;
    border-radius: 50%;
}

.section-content {
    width: 100%;
    text-align: left;
    padding-top: 3%;
    padding-bottom: 3%;
    line-height: 1.7;
    font-size: 16px;
    color: #4d4d4d;
}

.section-title {
    text-align: left;
    margin-top: 5%;
    font-weight: 700;
}

.social-links a {
    color: whitesmoke;
}

.social-links a:hover {
    color: orange;
    transition: ease-in;
    transition: color .15s ease-in-out;
}

.card {
    height: 180px;
}

.card-title {
    color: black;
}

.btn:hover, .btn:focus, .btn:active {
    color: white;
}

footer {
    bottom: 0;
    height: 80px;
    margin-top: 50px;
    background-color: #252A34;
    color: whitesmoke;
    padding-top: 30px;
}

@media only screen and (max-width: 767px) {
    img {
        width: 120px;
    }

    .banner {
        padding-top: 30%;
        height: 560px;
    }

    .banner h1 {
        font-size: 30px;
    }

    .banner h3 {
        font-size: 25px;
    }

    .banner h5 {
font-size: 13px;
    }

    .card {
        margin-bottom: 15px;
    }

    footer {
        font-size: 13px;
    }
}