#op ul{
display: flex;
justify-content: space-between;
flex-wrap: wrap;
}
#op ul li{
width: 15%;
text-align: center;

}


#op ul li span{
display: block;
margin-bottom: 20px;
}


#op ul li span.caution{
font-size: .7em;
margin-bottom: 0;
}