nav
{
    background:black;
    width:100%;
    position:fixed;
    left:0%;
    top:0%;
    box-shadow:1px 1px 20px 4px rgb(223, 19, 19);
    border-bottom:1px solid orange;
    z-index: 9999;
}
button
{
    background:red;
    opacity:0.9;
    padding:18px;
}
button:hover
{
    background:none;
}
placeholder
{
    color:black;
    z-index: 999;
}

.contact 
{
    width:70%;
    background: none;
    margin:auto;
}
input
{
    width:100%;
    height:40px;
}