#welcome{
background: #1f2127;
color:#fff;
margin: auto;
max-width:980px;
display:table;
}
olarak deneyin yada
#welcome{
background: #1f2127;
color:#fff;
margin: auto;
max-width:980px;
width:100%;
display:table;
}
Konu: Css Arkaplan Rengi