body,
html {
  height: 100%;
  font-family: 'Roboto', sans-serif;
  letter-spacing: 2px;
}

h1 {
  margin-bottom: 2em;
}

.form {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.btn {
  margin: 1em 0;
  width: 100%;
  background: #92cd41;
  display: inline-block;
  position: relative;
  text-align: center;
  font-family: 'Roboto', sans-serif;
  font-size: 30px;
  padding: 20px;
  text-decoration: none;
  color: white;
  /*box-shadow: inset -4px -4px 0px 0px #4aa52e;*/
}

.btn:disabled {
  background: #ccc;
  color: #444;
  box-shadow: inset -4px -4px 0px 0px #aaa;
}

.btn::before,
.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  box-sizing: content-box;
}
/*
.btn::before {
  top: -6px;
  left: 0;
  border-top: 6px black solid;
  border-bottom: 6px black solid;
}

.btn::after {
  left: -6px;
  top: 0;
  border-left: 6px black solid;
  border-right: 6px black solid;
}
*/
.errorMsg,
.successMsg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  margin: 0;
  padding: 1.5em;
  text-align: center;
  color: #fff;
  border-bottom: 6px solid #000;
  font-weight: 800;
}

.errorMsg {
  background: #e01111;
}

.successMsg {
  background: #4aa52e;
}

/*.instructions {max-width:40em;}*/

textarea { resize:vertical; max-height:6em; width:99%; font-size: 1em;}