Banner

<div class="banner">
  <p class="item">Support free software by donating!</p>
  <a class="item" href="https://my.fsf.org/donate" target="_blank">Free Software Foundation</a>
  <a class="item" href="https://softwarefreedom.org/donate/" target="_blank">Software Freedom Law Center</a>
  <a class="item" href="https://sfconservancy.org/donate/" target="_blank">Software Freedom Conservancy</a>
</div>
<div class="format-small">
  <a href="https://tschaubless.ch/banner.html">embed?</a>
</div>

.banner {
    display: flex;
    font-size: 1rem;
    font-weight: regular;
    margin-top: 1em;
    padding-top: 0.1em;
    padding-bottom: 0.1em;
    width: 100%;
    background-color: #dde3f4;
    text-align: center;
    align-items: center;
    color: #000000;
    border: 0.1rem black solid;
    border-color: black;
}

.banner .item {
    flex: 25%;
    padding-left: 1em;
    width: 100%;
    height: 100%;
}

.banner > a {
    color: #000000;
}

.format-small {
    padding-top: 0.3rem;
    float: right;
    font-size: 0.75rem;
}

.format-small > a {
    color: #000000;
}

@media only screen and (max-width: 600px) {
    .banner {
        flex-direction: column;
    }
    .banner .item {
        padding-left: 0em;
    }
}