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

.button_example{
border:6px solid #000000; -webkit-border-radius: 6px; -moz-border-radius: 6px;border-radius: 6px;font-size:45px;font-family:helvetica, sans-serif; padding: 4px 4px 4px 4px; text-decoration:none; display:inline-block;text-shadow: 0px 0px 0 rgba(0,0,0,0.3);font-weight:bold; color: #000000;
 background-color: #FFFFFF; background-image: -webkit-gradient(linear, left top, left bottom, from(#FFFFFF), to(#FFFFFF));
 background-image: -webkit-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -moz-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -ms-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -o-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: linear-gradient(to bottom, #FFFFFF, #FFFFFF);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#FFFFFF, endColorstr=#FFFFFF);
}

.button_example:hover{
 border:6px solid #000000;
 background-color: #FFFFFF; background-image: -webkit-gradient(linear, left top, left bottom, from(#FFFFFF), to(#FFFFFF));
 background-image: -webkit-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -moz-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -ms-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: -o-linear-gradient(top, #FFFFFF, #FFFFFF);
 background-image: linear-gradient(to bottom, #FFFFFF, #FFFFFF);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#FFFFFF, endColorstr=#FFFFFF);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px; height: 0; overflow: hidden;
}
 
.video-container iframe,
.video-container object,
.video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}