*
{
margin: 0;
padding: 0;
font-family: "Roboto", sans-serif;
font-weight: 300;
}

nav{
width: 900;
height: 40px;
margin-left: auto;
margin-right: auto;
background:rgb(243,244,246); 
}

nav ul{
text-align:center;
}

nav ul li{
valign: middle

list-style-type:none;
display:inline-block;
line-height: 40px;
}

nav ul li a{
text-decoration: none;
color: rgb(145,153,172);
padding: 5px 30px 5px 30px;

}

nav ul li a:hover { 
color: rgb(0,0,0);
transition: 1s;
}

table {
width: 900;
margin-left: auto;
margin-right: auto;
}

.marginauto{
margin-left: auto;
margin-right: auto;
display: block;
}