main{
    overflow: hidden;
}
.canvas{
  width: 100vw;  
  height: 100vh;
  display: block;
  position: fixed; 
  top: 0;
  left: 0;
}

.bg{
    background-size: 100% 100%;
}
.game_menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    position: fixed;
    left: calc(100vw - 66px);
    top: 0;
    min-height: 100px;
    min-width: 50px;
    background: #00000078;
}

.game_menu__icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border: 3px solid rgb(73, 18, 18);
    border-radius: 10px;
    background: #00000096;
}
.game_menu__icon:hover {
border: 3px solid rgb(139, 34, 34);
background: #74747496;
}

.books {
    background-size: contain;
    height: 90%;
}