body , html {
    position: relative;
            width: 100%;
              height: 100%;
              background: url("../img/microphonehero.JPG") no-repeat center center fixed;
            -webkit-background-size: cover;
          -moz-background-size: cover;
      -o-background-size: cover;
      background-size: cover; 
}








.card-deck{
    width:70%;
    margin:0 auto;
    margin-top: 125px;
    border-radius: 55px;
    
}

.card{
    padding: 20px;
    border-radius: 10px;
   
}