html,
body {
  margin: 0;
  padding: 0;
  font-family: "Tahoma";
}
h1,
h2,
h3,
h4,
h5,
h6,
ul,
li,
a,
span,
div,
p,
input {
  margin: 0;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  font-size: 13px;
  color: #000;
  font-family: "Tahoma";
  font-weight: normal;
  list-style: none;
  text-decoration: none;
}
body {
  padding: 50px 100px;
}
.tab-container {
  margin-bottom: 20px;
  max-width: 600px;
}
.tab-container .tab-list {
  overflow: auto;
}
.tab-container .tab-list .tab {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-bottom-color: #ccc;
  border-top-left-radius: 2px;
  border-top-right-radius: 2px;
  float: left;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  color: #999;
}
.tab-container .tab-list .tab.active {
  color: #000;
  border-color: #ccc;
  border-bottom-color: transparent;
}
.tab-container .tab-content {
  position: relative;
}
.tab-container .tab-content .content {
  transition: all 0.2s ease-out;
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  line-height: 170%;
  opacity: 0;
  visibility: hidden;
}
.tab-container .tab-content .content.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}