* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    text-align: center;
}
img {
    width: 200px;
}

#panel{
    align-content: center;
    position: fixed;
    z-index: 10;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100vh;
    background-color: black;
    transition: all 1s ease-in;
}

.arrow {
    position: absolute;
    right: 0px;
   top: 0px;
    
}
#panel.slide-up {
    transform: translateY(-100%);
    background-color: red;
}
#panel.slide-down {
    transform: translateY(100%);
}

/*.screenshot {
    text-align: center;
    display: inline-block;
    width: auto ;
}*/

h3{
    font-size: 2em;
}

#game {
    padding: 5px 35px;
    font-size: 2em;
    background-color: blueviolet;
    border-radius: 15px;
    border: none;
    box-shadow: 5px 5px 15px black;
    cursor: pointer;
}

#game:hover {
    background-color: red;
}

#rectangle {
    position: fixed;
    top: 0px;
    right: 0px;
    width: 15%;
    height: 100vh;
    background: rgb(101, 24, 24);
  }
#rectangles {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 15%;
    height: 100vh;
    background: rgb(101, 24, 24);   
}


/* HTML: <div class="battery"></div> */
/*.battery {
    --n: 6; /* the number of bar */
   /* --g: 5px; /* the gap  */
    
  /*  width: 200px; /* control the size */
    /* color: #00b3ff;
    aspect-ratio: 2;
    border: var(--g) solid;
    padding: var(--g);
    border-radius: 10px;
    background: repeating-linear-gradient(90deg, currentColor 0 calc(100% / var(--n) - var(--g)), #0000 0 calc(100% / var(--n))) 0 0 / calc(100% + var(--g)) content-box;
    position: relative;
    box-sizing: border-box;
    transform: all 1s ease-in;
}
.battery:before {
    content: "";
    position: absolute;
    inset: 30% -20px 30% 100%;
    background: currentColor;
}/*