CSS File (styles.css)

* {
    box-sizing: border-box;
}

body {
    background-color: black;
}
h1 {
    color: darkviolet;
}

h2 {
    color: purple;
}

h3 {
    color: blue;
}

p {
    color: deepskyblue;
    padding: 30px;
    border: 1px outset white;
}
.body_hold {
    background: url('media/tge_cityscape.jpg');
    background-size: 100%;
    height: 100%;
    background-color: black;
    opacity: 0.9;
}
.column {
    float: left;
    padding: 10px;
    text-align: center;
    /*background-color: black;
    opacity: 0.6; */
}
.leftm {
    float: left;
    width: 15%;
    text-align: center;
}

.rightm {
    width: 15%;
    float: right;
    text-align: center;
}

.middlem {
    text-align: center;
    width: 70%;
    opacity: 1;

}
.row {
    background-color: black;
    opacity: 0.7;

}

.row:after {
    content: "";
    display: table;
    clear: both;
    position: relative;

}


.logo {
    width: 74px;
    height: 74px;
}

.main {
    border: 1px solid white;
    height: 95px;
    padding: 10px;
}

.header {
    overflow: hidden;
    background-color: black;
    padding: 20px 10px;
    border-style: none none solid none

}

.header a{
    float: left;
    color: deepskyblue;
    text-align: center;
    padding: 12px;
    text-decoration: none;
    font-size: 18px;
    line-height: 25px;
    border-radius: 4px;
}

.header a.logo{
    font-size:25px;
    font-weight: bold;

}

.header a:hover {
    background-color: purple;
    color: white;
}

.header-right {
    float: right;
}

.header a.active {
    background-color: mediumblue;
    color: white;
}

.footer {
    background-color: black;
    color: deepskyblue;
    width: 100%;
    margin: 0px auto 0px auto;
    clear: both;

}

@media screen and (max-width: 500px) {
  .header a {
    float: none;
    display: block;
    text-align: left;
  }
  .header-right {
    float: none;
  }
}