a{
    text-decoration: none;
}
a:link{
    color: #00f;
}
a:visited{
    color:#0f0;
}
a:focus{
    color: #666;
}
a:hover{
    color: darksalmon;
}
a:active{
    color: #000;
}

body{
    background-color: rgb(0, 33, 4);
    text-align: center;
    color: aliceblue;
    font-family: Arial, Helvetica, sans-serif;
}

.container{
    width: 100%;
    background-color: black;
    margin: auto;
}

img{
    width: 100%;
    height: 75vh;
}

ul{
    padding: 0;
}

li{
    padding: 10px;
    text-transform: uppercase;
    font-weight: bold;
}

ul li{
    text-decoration: none;
    list-style: none;
}

header{
    background-color: salmon;
    padding: 20px;
}

header a{
    color:aliceblue;
    text-transform: uppercase;
}

.sub-banner{
    background-color: blueviolet;
    padding:10px;
}

.about{
    line-height: 25px;
    padding: 10px 0;
    border-bottom: #fff solid 1px;
}

.form-group{
    padding: 10px;
    margin: auto;
}

#subject{
    width: 90%;
    height: 200px;
}

button{
    margin: 10px;
}

footer{
    background-color: salmon;
    padding: 10px;
    text-transform: uppercase;
}