Display: inline with scroll overflow-y - html

Question

I can not set the scroll to this item that has the property display: inline
I tried it with white-space: nowrap but does not work
while repositioning overflow under a height
I did not have any changeis the second question I ask above getilmente give me a hand
Solution:
Used inline-block
#Contenitore_Titoli
{
width: 1535px;
height: 30px;
line-height: 35px;
text-align: center;
}
.Elenco_Utenti
{
width: 360px;
height: 25px;
line-height: 25px;
float: left;
text-align: center;
}
.Elenco_Contatti_Whatsapp
{
width: 371px;
height: 25px;
line-height: 25px;
float: left;
text-align: center;
}
.Elenco_Contatti_Skype
{
width: 371px;
height: 25px;
line-height: 25px;
float: left;
text-align: center;
}
.Elenco_Contatti_Facebook
{
width: 371px;
height: 25px;
line-height: 25px;
float: left;
text-align: center;
}
.Contenitore_Lista_Contatti
{
border-top: 1px solid gray;
width: 1480;
height: 25px;
}
#Contatti
{
width: 360px;
height: 31px;
float: left;
color: red;
display: inline;
text-align: center;
}
#Contatti_Whatsapp_Titolo
{
width: 371px;
height: 31px;
color: red;
display: inline;
text-align: center;
float: left;
}
#Contatti_Skype_Titolo
{
width: 371px;
height: 31px;
color: red;
display: inline;
text-align: center;
float: left;
}
#Contatti_Facebook_Titolo
{
width: 371px;
height: 31px;
color: red;
display: inline;
text-align: center;
float: left;
}
#Contenuto_Lista_Guide_Div
{
display: inline;
overflow-y: scroll;
height: 637px
}
<div id="Contenitore_Titoli">
<div id="Contatti">Nome Utente</div>
<div id="Contatti_Whatsapp_Titolo">Whatsapp</div>
<div id="Contatti_Skype_Titolo">Skype</div>
<div id="Contatti_Facebook_Titolo">Facebook</div>
</div>
<div id="Contenuto_Lista_Guide_Div">
<div class="Contenitore_Lista_Contatti">
<div class="Elenco_Utenti"> darkbit </div>
<div class="Elenco_Contatti_Whatsapp"> 345956254</div>
<div class="Elenco_Contatti_Skype"> pipposkype </div>
<div class="Elenco_Contatti_Facebook">facebook</div>
</div>
</div>

Answer 1

You need to use CSS property overflow to scroll after setting a height.
For example, write a class like following:
.aClass{
height: 250px;
overflow: scroll;
}
You can see the overflow property here: http://www.w3schools.com/cssref/pr_pos_overflow.asp