.campo25{
width:24%;
float:left;
text-align:center;
}
#contatore{
position:relative;
width:150px;
height:50px;
border:1px solid black;
box-shadow: 2px 2px 2px #888888;
margin: 0 auto;
}
#piu{
position: absolute;
left:100px;
top:0px;
width: 50px;
height:50px;
overflow: hidden;
}
#contenitorepiu{
position: absolute;
left:0px;
top:0px;
width: 50px;
height:50px;
background-color:red;
color:white;
font-family:arial;
display: flex;
justify-content: center;
align-items: center;
font-size:60px;
cursor:pointer;
overflow: hidden;
}
#meno{
position: absolute;
left:0px;
top:0px;
width: 50px;
height:50px;
overflow: hidden;
}
#contenitoremeno{
position: absolute;
left:0px;
top:0px;
width: 50px;
height:50px;
background-color:red;
color:white;
font-family:arial;
display: flex;
justify-content: center;
align-items: center;
font-size:60px;
cursor:pointer;
overflow: hidden;
}
#reg{
position: absolute;
left:50px;
top:0px;
width: 50px;
height:50px;
color:black;
font-family:arial;
display: flex;
justify-content: center;
align-items: center;
font-size:25px;
border-left:1px solid black;
border-right:1px solid black;
cursor:default;
overflow: hidden;
}