.collapsible {
  background-color:white;
  color: black;
  cursor: pointer;
  padding: 18px;
  width: 50%;
  margin-left:25%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 20px;
}

.active, .collapsible:hover {
  color:red;
}

.collapsible:after {
  content: '\002B';
  color: black;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2212";
}

.content {
    width:43%;
    margin-left:27%;
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color: white;
}
.collapsible-text{
    font-size:18px;
}


@media only screen and (max-width: 800px) {
    .collapsible{
        width:100%;
        margin:0;
    }
    .content{
        width:80%;
        margin-left:10%;
    }
    
}