body {
    font-family: sans-serif;
    color: #444;
    margin: 0 auto;
    text-align: center;
}

p.coll {
    color: rgb(255, 106, 47);
}
.mode{
    margin:10px;width:200px; height: 60px;font-size: 33px;
}
.new-class{
    color:rgb(233, 140, 245);
}
#FF{
    width:180px; height: 180px;font-size: 66px;
}
#LL{
    margin:20px; width:180px; height: 180px;font-size: 66px;
}
#stop{
    margin:20px,10px; width:180px; height: 180px;font-size: 66px;
}
#RR{
    margin:20px; width:180px; height: 180px;font-size: 66px;
}
#BB{
    width:180px; height: 180px;font-size: 66px;
}
#how{
    font-size: 33px;
}
#mode{
    font-size: 33px;border-bottom: 1px solid;
}
#welcome{
    color:rgb(226, 43, 43);font-size: 50px;
} 
.bi-award-fill{
    font-size: 50px;
}

button{
    border-radius:10px;
    border-color: rgb(198, 226, 252);
    border-style: hidden;
}
input{
    width:180px;height: 60px;
    font-size: 33px;
}
.multifunction{
    margin:10px;width:200px; height: 60px;font-size: 33px;
}