div.START_ton
{
border:0.15rem solid #777;
float:right;
margin-bottom:1rem;
padding:0.2rem;
border-radius:0.3rem;
background:rgba(0,0,0,0.3);
color:#F0F;
font-size:2rem;
}

button.ton
{
color:#F0F;
font-size:1.5rem;
background:#555;
border-radius:0.3rem;
margin:0.2rem;
}

button.ton:hover
{
background:#333;
}

button.ton_sel
{
background:#333;
box-shadow:0 0 0.3rem 0.2rem rgba(255,200,0,0.6);
}