.image_full {
  display: block;
  width: 100%;
  margin: auto;
  border: none !important
}
.image_mobile {
  display: none
}
@media(max-width:640px) and (min-width:320px) {
  .image_full {
    display: block
  }
  .image_mobile {
    display: none
  }
}
button.css3button {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  color: #ffa400;
  padding: 5px;
  margin: 10px 7px 7px 23px;
  min-width: 130px;
  background: -moz-linear-gradient(top, #ff002b 0, #c73434 50%, #ffc800);
  background: -webkit-gradient(linear, left top, left bottom, from(#a40606), color-stop(.5, #000), to(#750909));
  -moz-border-radius: 10px;
  border-radius: 10px;
  border: 1px solid #fff;
  -moz-box-shadow: 0 1px 3px rgba(255, 255, 255, .5), inset 0 0 5px rgba(214, 199, 98, .6);
  -webkit-box-shadow: 0 1px 3px rgba(255, 255, 255, .5), inset 0 0 5px rgba(214, 199, 98, .6);
  box-shadow: 0 1px 3px rgba(255, 255, 255, .5), inset 0 0 5px rgba(214, 199, 98, .6)
}
header {
  background-size: 100% 100%
}
img {
  max-width: 100%;
  height: auto
}