style4.css

body{
    margin:0;
    padding: 0;
    text-align: center;
    background-image: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)),url('bg.gif');
    background-position: center;
	background-size: cover;
	font-family: sans-serif;
}
.c-title{
    margin-top: 100px;
    color:white;
    text-transform: uppercase;
    transition: all 4s ease-in-out;
}
 h1{
    font-size: 50px;
    line-height: 10px;
    color:white;
    margin-top: 40px;
    text-decoration-color: aliceblue;
}
 h2{
    font-size:30px ;
    margin-top: 30px;
    color:white;
}
form{
        margin-top: 50px;
        transition: all 1s ease-in-out;
}
.form-control{
    width:600px;
    background: transparent;
    border:none;
    outline: none;
    border-bottom: 1px solid gray;
    color:#fff;
    font-size: 18px;
    margin-bottom: 16px;
}
input{
    height: 45px;
}
form .submit{
    background:deepskyblue;
    color:black;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 2px;
    height: 50px;
    margin-top: 20px;
}
form .submit:hover{
    background-color: aqua;
}