.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: none
    }
    .image_mobile {
        display: block
    }
}

button.css3button {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px;
    color: #ffa400;
    padding: 5px;
    margin: 7px;
    margin-top: 10px;
    margin-left: 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, #000000), 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
}