html, body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont,
             "Segoe UI", Roboto, Arial, sans-serif;
    font-weight: 700;
    margin: 0;
    padding: 0;
    overflow-y: auto;
    overflow-x: none;
}

@media (max-width: 600px) {
  html, body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont,
             "Segoe UI", Roboto, Arial, sans-serif;
    font-weight: 700;
    margin: 0;
    padding: 0;
    overflow: hidden;
  }
}

body {
  overflow-y: auto;  
  overflow-x: hidden;
}

.button {
  text-align: center;
}

#div0 {
  background-color: rgb(147, 252, 147); 
  width: 100%; 
  float: left; 
  min-height: 100dvh;
}

#div1 {
  display: none;
  background-color: rgb(250, 252, 147);
}

@media (max-width: 600px) and (orientation: portrait) {
    #div0 {
      background-color: rgb(147, 252, 147); 
      width: 30%;
      float: left;
      height: 100dvh;
      overflow-y: auto;
      overflow-x: hidden;
      padding-bottom: 300px;
      box-sizing: border-box;
    }
    
    #div1 {
      display: block;
  	  background-color: rgb(250, 252, 147); 
  	  width: 70%; 
  	  float: right; 
  	  height: 100dvh;
      overflow-y: scroll;
      overflow-x: hidden;
      padding-bottom: 300px;
      box-sizing: border-box
	}
}

.buttons {
  width: 70px;
  height: 50px;
  margin: 20px;
  display: inline-block;
  border: 5px solid black;
  font-size: 30px;
  border-radius: 15px;
  background-color: white;
  transition: 0.5s;
  cursor: pointer;
}

.buttons:hover {
    background-color: black;
    border-color: white;
    color: white;
    transition: 0.5s;
}

@media (max-width: 600px) {
  .buttons {
    width: 60px;
    height: 40px;
    margin: 20px;
    touch-action: none;
    border: 5px solid black;
    font-size: 20px;
    border-radius: 15px;
    background-color: white;
    transition: 0.5s;
    cursor: pointer;
  }

  .buttons:hover {
      background-color: black;
      border-color: white;
      color: white;
      transition: 0.5s;
  }
}

@media (max-width: 1105px) {
  .close_wrapper {
    margin-top: 220px;
  }
}

#modal {
    display: none;
    position: fixed;
    padding-top: 100px;
    left: 0;
    top: 0;
    z-index: 1;
    overflow: auto;
    width: 100%;
    height: 100%;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    text-align: center;  
    border-radius: 15px;
}

.modal-content {
    padding: 30px;
    background-color: white;
    margin-left: 20%;
    margin-right: 20%;
    border-radius: 15px;
}

#links {
  display: inline-block;
  padding: 5px;
}

.head_buttons {
  text-align: right; 
  float: right; 
}

.header_buttons {
  border-radius: 15px; 
  font-size: 30px; 
  cursor: pointer; 
  text-decoration: none; 
  color: black; 
  background-color: rgb(229, 228, 228); 
  border: 4px solid black;
}

.boxes {
    padding-top: 50px;
    text-align: center;
    --webkit-touch-callout: none;
}

.low, .mid, .high {
    display: flex;
    justify-content: center; 
    align-items: center;
    margin-top: -5%;
    border: 5px solid black;
    border-radius: 15px;
    width: fit-content;
    display: inline-block;
    padding: 10px;
    background-color: white;
    margin: 0 auto;
}

.low > h2, .mid > h2, .high > h2 {
    color: black;
}

@media (max-width: 600px) {
  .low, .mid, .high {
    display: flex;
    justify-content: center;
    align-items: center;
    border: 5px solid black;
    border-radius: 15px;
    padding: 10px;
    margin: 10px auto;
    background-color: white;
    box-sizing: border-box;
    text-align: center;
    margin-top: -5%;
    width: 100%;
    overflow-x: auto;         
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    flex-direction: row;
  }

  .low > h2,
  .mid > h2,
  .high > h2 {
    color: black;
    font-size: 17px;
    display: block;
    margin: 0;
    overflow-wrap: break-word;
    flex: 0 0 100%;
  }
}

mark {
    background-color: transparent;
}

h2 {
    user-select: none;
}