body {
    font-size: medium;
    font-family: sans-serif;
    max-width: 60em;
    margin: auto;
    padding: 1em;
}

h1 {
    clear: both;
    text-align: left;
    margin-top: 2em;
}
h1:first-child {
    margin-top: 1em;
}

article h2 {
    margin: 0;
}

article h3 {
    margin: 0;
    color: gray;
    font-size: medium;
}

article {
    clear: both;
    border-top: 1px solid silver;
    padding: 1ex;
}
article:target {
    background-color: #cef;
}

article img {
    float: left;
    margin: 0 1em 1em 0;
    outline: 1px solid silver;
}

article p {
    margin: 0;
    margin-top: 1ex;
    padding: 0;
}

article nav {
    justify-content: end;
    _padding-bottom: 1em;
    margin-top: 1ex;
    display: flex;
    flex-direction: row;
}

article nav section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-left: 1ex;
}

a.button {
    display: inline-block;
    color: white;
    background-color: silver;
    padding: 1ex;
    border-radius: 0.5ex;
    text-decoration: none;
    box-shadow: 2px 2px 2px rgba(0,0,0,0.5), inset 1px 1px 0 rgba(255,255,255,0.5);
}
article nav a {
    margin-bottom: 0.5ex;
}

a.button:hover {
    opacity: 0.8;
}

a.web {
    background-color: #49f;
}

a.github {
    background-color: #197935;
}

a.apk {
    background-color: #4a5;
}

a.playstore {
    background-color: #49f;
}

a.warning {
    background-color: gray;
    float: left;
}

a.webstore {
    background-color: #4a7;
}

a.playstore:hover {
    background-color: #6af;
}

.clearfix {
    clear: both;
}

@media only screen and (max-width: 500px) {
    body {
        padding: 0em;
    }
    h1 {
        padding-right: 0.5ex;
    }
}