body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-image: url('../img/background/wp1894875-motherboard-wallpapers.jpg');
}

header {
  display: block;
  border-bottom: 4px solid rgb(164, 214, 24);
  margin-top: 0%;
  padding-bottom: 2em;
  background-image: url('../img/background/wp2163708-arduino-wallpapers.jpg');
}

.logo {
  float: left;
  width: 9em;
  margin: 1rem;
  border-radius: 40%;
}

.title {
  text-align: center;
  font-size: 2em;
  padding: 1.5em;
  padding-top: 2em;
  color: #fff;
  margin: 0;
}

.title > span {
  background-color: rgb(202, 22, 22);
}

.about {
  width: 20%;
  background-color: rgb(54, 80, 80);
  color: rgb(198, 209, 100);
  margin: 1%;
  padding: 1.5%;
  border: 2.5px solid rgb(243, 240, 240);
}

/** slide : **/
.slide-container {
  max-width: 800px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.slide-container:hover {
  display: block;
}

.slide {
  display: none;
  width: 100%;
}

.slide-bottom-container {
  text-align: center;
  display: inline-block;
  width: 100%;
  padding: 0.01em 16px;
  margin-top: 16px;
  margin-bottom: 16px;
  font-size: 18px;
  line-height: 1.5;
  color: #fff;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translate(-50%, 0%);
}

.slide-bottom-container:after,
.slide-bottom-container:before {
  content: '';
  display: table;
  clear: both;
}

.slide-left,
.slide-right,
.slide-bottom-badge {
  cursor: pointer;
}

.slide-left {
  float: left;
  color: rgb(224, 197, 197);
  padding-left: 1%;
}

.slide-right {
  float: right;
  color: rgb(224, 197, 197);
  padding-right: 1%;
}

.slide-left:hover,
.slide-right:hover {
  color: #b4aa50;
}

.slide-bottom-badge {
  height: 13px;
  width: 13px;
  padding: 0;
  background-color: #000;
  color: #fff;
  display: inline-block;
  text-align: center;
  border: 1px solid #ccc !important;
  border-radius: 50%;
  background-color: transparent;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

.slide-bottom-badge:hover {
  color: #000 !important;
  background-color: #fff !important;
}

.slide-white {
  color: #000;
  background-color: #fff;
}

/** footer: **/
footer {
  background-image: url('../img/background/thomas\ more\ footer.jpg');
  color: cyan;
  padding: 19px;
  text-align: center;
  border-top: 2.5px solid rgb(22, 17, 14);
  margin-top: 21px;
  border-bottom: 2.5px solid rgb(24, 13, 7);
  margin-bottom: 0px;
}