html,body {
  padding: 0;
  margin: 0;
  height: 100%;
}

h2 {
  color:#000000;
}

.header {
  padding: 20px;
  text-align: center;
  background: #000000;
  color: white;
  font-size: 15px;
  width: 100%;
}

.content {
  padding: 10px;
  color: white;
  font-size: 15px;
  width: 100%;
  height: 50%;
}

.footer {
  position:fixed;
  bottom: 0;
  left: 0;
  display: block;
  padding: 10px;
  text-align: left;
  background: #000000;
  color: white;
  font-size: 10px;
  width: 100%;
  height: 5%;
}

.button {
  opacity: 0.5;
  align-items: center;
  appearance: none;
  background-image: radial-gradient(100% 100% at 100% 0, #515151 0, #979797 100%);
  border: 0;
  border-radius: 4px;
  box-shadow: rgba(45, 35, 66, .4) 0 2px 4px,rgba(45, 35, 66, .3) 0 7px 13px -3px,rgba(58, 65, 111, .5) 0 -3px 0 inset;
  box-sizing: border-box;
  color: #000000;
  cursor: pointer;
  display: inline-flex;
  font-family: "JetBrains Mono",monospace;
  height: 40px;
  width: 40% ;
  justify-content: center;
  line-height: 1;
  list-style: none;
  overflow: hidden;
  padding-left: 16px;
  padding-right: 16px;
  position: relative;
  text-align: left;
  text-decoration: none;
  transition: box-shadow .15s,transform .15s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  white-space: nowrap;
  will-change: box-shadow,transform;
  font-size: 18px;
  margin-top: 1%;
  margin-bottom: 0%;
}

.button:focus {
  box-shadow: #000000 0 0 0 1.5px inset, rgba(45, 35, 66, .4) 0 2px 4px, rgba(45, 35, 66, .3) 0 7px 13px -3px, #000000 0 -3px 0 inset;
}

.button:hover {
  box-shadow: rgba(45, 35, 66, .4) 0 4px 8px, rgba(45, 35, 66, .3) 0 7px 13px -3px, #000000 0 -3px 0 inset;
  transform: translateY(-2px);
  opacity: 1.0;
  color: #fff;
}

.button:active {
  box-shadow: #000000 0 3px 7px inset;
  transform: translateY(2px);
}

.column {
  float: left;
  width: 50%;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}