@import url('https://fonts.googleapis.com/css?family=Arimo:400,700&display=swap');

.warpper{
  display:flex;
  flex-direction: column;
  align-items: center;
}
.tab{
  cursor: pointer;
  padding:10px 20px;
  margin:0px 10px;
  background:#000099;
  display:inline-block;
  color:#ffffff;
  border-radius:3px 3px 3px 3px;
  box-shadow: 0.1rem 0.1rem 0.1rem 0.1rem #000099;
}
.panels{
  background:#ffffff;
  box-shadow: 0.2rem 0.2rem 0.2rem 0.2rem #000099;
  min-height:200px;
  width:100%;
  max-width:1100px;
  border-radius:15px;
  overflow:hidden;
  padding:20px;
  background-image: url("bg.gif");
 
}
.panel{
  display:none;
  animation: fadein .8s;
}
@keyframes fadein {
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
.panel-title{
  font-size:1.5em;
  font-weight:bold
}
.radio{
  display:none;
}

#one:checked ~ .panels #one-panel,
#two:checked ~ .panels #two-panel,
#three:checked ~ .panels #three-panel,
#four:checked ~ .panels #four-panel,
#five:checked ~ .panels #five-panel,
#six:checked ~ .panels #six-panel,
#seven:checked ~ .panels #seven-panel,
#eight:checked ~ .panels #eight-panel,
#nine:checked ~ .panels #nine-panel,
#ten:checked ~ .panels #ten-panel,
#eleven:checked ~ .panels #eleven-panel,
#twelve:checked ~ .panels #twelve-panel,
#thirteen:checked ~ .panels #thirteen-panel,
#fourteen:checked ~ .panels #fourteen-panel
{
  display:block
}

#one:checked ~ .tabs #one-tab,
#two:checked ~ .tabs #two-tab,
#three:checked ~ .tabs #three-tab,
#four:checked ~ .tabs #four-tab,
#five:checked ~ .tabs #five-tab,
#six:checked ~ .tabs #six-tab,
#seven:checked ~ .tabs #seven-tab,
#eight:checked ~ .tabs #eight-tab,
#nine:checked ~ .tabs #nine-tab,
#ten:checked ~ .tabs #ten-tab,
#eleven:checked ~ .tabs #eleven-tab,
#twelve:checked ~ .tabs #twelve-tab,
#thirteen:checked ~ .tabs #thirteen-tab,
#fourteen:checked ~ .tabs #fourteen-tab

{
  background:#fffffff6;
  color:#000;
  border-top: 1px solid #000099;
}