/* Define colors */
:root {
    --col-bg: #333333;
    --col-fg: #f0f0f0;
    --col-link: #0080ff;
    --col-link-hover: #80f0ff;
}

body {
    background-attachment: fixed;
    background-color: var(--col-bg);
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--col-fg);
}

a {
    text-decoration: none;
    color: var(--col-link);
}

a:hover {
    text-decoration: none;
    color: var(--col-link-hover);
}

h1 {
    text-align: center;
    opacity: 0.9;
}

.box img {
    padding: 20px;
}

.box {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 20px;

    width: 60%;
    min-width: 512px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    margin-bottom: 10px;
    word-wrap: break-word;
}

.flexvertical {
    display: flex;
    align-items: center;
    flex-direction: column;
}

.flexhorizontal {
    display: flex;
    align-items: center;
    flex-direction: row;
    flex-wrap: wrap-reverse;
}


.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 200px;
  background-color: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #eee;
  text-align: center;
  border-radius: 10px;
  padding: 10px;
  position: absolute;
  z-index: 1;
  left: 100%;
  top: 0%;
  margin-left: 10px;
  
  opacity: 0;
  transition: opacity 1s;
  transition-delay: 2s;
  transition-timing-function: ease-in;
  
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

#footer {
    border: 0px;
    background-color: rgba(0, 0, 0, 0);
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
}