html {
    background: url("background1.gif") repeat;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#leftSide {
    width: 800px;
    margin: auto;
    text-align: center;
}

#rightSide {
    min-height: calc(100%-36px);
    width: 800px;
    margin: 36px auto;
    background: #c0c1c2;
    box-shadow: 2px 2px 0px #000;
    border: 1px solid #000;
}

#website-title {
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: center;
    box-shadow: inset 1px 1px 0px #FFF, 0px 1px 0px #000;
    border: 1px solid #000;
    margin: 0em .4em;
    font-style: italic;
}

header img {
    max-width: 10em;
}

#macos-title {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: .1em .4em;
}

#macos-title .label {
    font-weight: bold;
    text-align: center;
    margin: 0;
    padding: 0em .4em;
}

#macos-title .separator {
    height: 15px;
    flex-grow: 1;
    background: url("data:image/svg+xml;base64,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") repeat-x;
    background-size: contain;
    display: block;
}

main {
    background: #FFF;
    border: 1px solid black;
    box-shadow: 1px 1px 0px #FFF, -1px -1px 0px #000;
    margin: 0em .4em;
    margin-bottom: .4em;
    position: relative;
    padding: 0em 1em;
}

.tag {
    border: 3px solid blue;
    box-shadow:  3px 3px 0 black;
    padding: 0 3px;
    margin-left: 3px;
    margin-right: 3px;
}

.tag:hover {
    border-color: lightblue;
}

.tag:active {
    box-shadow: none;
}