style3.css

*
{
    margin:0;
    padding:0;
}
header
{
    background-image:linear-gradient(rgba(0,0,100,0.5),rgba(0,110,0,0.5)),url(busmoving11.jpg);
    height: 100vh;
    background-size: cover;
    background-position: center;
}
.main-nav
{
    font-family: monospace;
    float:right;
}
.main-nav li
{
    font-family: monospace;
    display:inline-block;
}
.main-nav li a
{
    color: white;
    text-decoration:none;
    padding:5px 20px;
    font-family:monospace;
    font-size:15px;
}
.main-nav li.active a
{
    border: 1px solid white;
}

.main-nav li a:hover
{
    border:1px solid white;
}
.logo img
{
    width: 150px;
    height: auto;
    float:left;

}
body
{
    font-family:cursive;
}
.row
{
    max-width:1200px;
        margin:auto;
}

h1
{
    color:white;
}

ul
{
    margin: 0px;
    padding: 0px;
    list-style:none;

}

.sub-nav li
{
    float: left;
    width:185px;
    height:40px;
    background-color:black;
    font-family: monospace;
    opacity: 0.8;
    line-height: 40px;
    text-align: center;
    font-size: 20px;
    margin-right: 2px;

}

.sub-nav li a
{
    text-decoration: none;
    color: white;
    font-size: 18px;
}
.sub-nav li a:hover
{
    background-color: forestgreen;
}
ul li ul li
{
    display: none;
}
ul li:hover ul li
{
    display: block;
}