* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background: aqua;

}

#canvas1{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: deepskyblue;
    max-width: 100%;
    max-height: 100%;
}

#buttonUp {
    width: 60px;
    height: 85px;
    background-color: blue;
    position: absolute;
    border: 0cm;
    font-size: 15px;
}

#buttonRight {
    width: 60px;
    height: 85px;
    background-color: blue;
    position: absolute;
    border: 0cm;
    font-size: 15px;
}

#buttonLeft {
    width: 60px;
    height: 85px;
    background-color: blue;
    position: absolute;
    border: 0cm;
    font-size: 15px;
}

#tfMul {
    background-color: aqua;
    text-align: center;
    font-size: 20px;
    position: absolute;
    border: 0cm;
    border-radius: 10px;
}


#level {
    background-color: cadetblue;
    text-align: center;
    font-size: 15px;
    position: absolute;
    border: 0cm;
    border-radius: 10px;
}

#start {
    width: 60px;
    height: 85px;
    background-color: red;
    position: absolute;
    font-size:15px;
    border: 0cm;
    border-radius: 10px;
}

#reload {
    width: 60px;
    height: 85px;
    background-color: greenyellow;
    position: absolute;
    font-size:15px;
    border: 0cm;
    border-radius: 10px;
    visibility: hidden;
}

#back {
    width: 30px;
    height: 15px;
    background-color: forestgreen;
    position: absolute;
    font-size: 15px;
    border: 0cm;
    border-radius: 10px;
}

#prov_platform {
    display: none;
}

#einstein {
    display: none;
}

#correct, #false {
    display: none;
    width: 50px;
    height: 50px;
}

#cloud {
    display: none;
    width: 110px;
    height: 30px;
}

#scorebar {
    display: none;
}

/* style for mode selection page*/

.level-drop {
    display: flex;
    flex-direction: row;
    align-items: center;
    width: 80%;
    max-width: 300px;
    margin: 20px auto;
}
.level-but {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80%;
    max-width: 300px;
    margin: 20px auto;
}

.level-dropdown {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #333;
    border-radius: 5px;
    background-color: cadetblue;
    margin-bottom: 10px;
}
.level-button {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #333;
    border-radius: 5px;
    background-color: cadetblue;
    margin-bottom: 10px;
}
#selectedLevel {
    margin-top: 20px;
    font-size: 18px;
}

.level-dropdown {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #333;
    border-radius: 5px;
    background-color: cadetblue;
    margin-bottom: 10px;
}
.level-button {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #333;
    border-radius: 5px;
    background-color: cadetblue;
    margin-bottom: 10px;
}
#selectedLevel {
    margin-top: 20px;
    font-size: 18px;
}