#background {
    opacity: .7;
}

.main-content {
  opacity: 1;
  background-image: url("../img/arka.png");
  font-size: .8em;
  max-width: 450px;
}

#pic10 {

  border-top-right-radius: 100%;
  border-bottom-left-radius: 100%;
  max-width: 0;
  float: right;
  margin-right: 100px;
  margin-top: 30px;
  margin-bottom: 30px;
}

@media (min-width:800px) {
  #pic10 {
    border: solid #ffbf00 10px;
    max-width: 30%;
  }
}






/* Style the tab */
div.tab {
    overflow: hidden;
    background-color: #ffbf00;
}

.tablinks {
  font-weight: bold;
}

/* Style the buttons inside the tab */
div.tab button {
    background-color: inherit;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 6px;
    transition: 0.3s

}

/* Change background color of buttons on hover */
div.tab button:hover {
    background-color: #ddd;
}

/* Create an active/current tablink class */
div.tab button.active {
    background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
    display: none;
    padding: 6px 12px;
    border-top: none;
}