html {  
        margin:0; 
        padding:0; 
        background: url(bg/bg.jpg) no-repeat center center fixed;  
        -webkit-background-size: cover; 
        -moz-background-size: cover; 
        -o-background-size: cover; 
        background-size: cover; 
} 

.btn-sec{
     width: 304px;
     margin-left: auto;
     margin-right: auto;
}

.btn-sec {
     position: absolute; 
     top: 50%; 
	 left: 50%; 
     transform: translate(-50%, -50%); 
}

.btn {
     border: none; 
     color: #000000; 
     padding: 14px 28px; 
     cursor: pointer; 
     width: 150px;	
}

.ba {
     background-color: #f3f3f3;
} 

.ba:hover {
     background-color: #ffffff;
}

.bb {
     background-color: #f3f3f3;
} 

.bb:hover {
     background: #ffffff;
}

h1{
     color: #ffffff;
     text-align: center;
     font-size: 20px;
     text-transform: uppercase; 
}

h2{
     color: #ffffff;
     text-align: center;
     font-size: 15px;
}

a {
     color: #ffffff;	
}