#subscribebutton {
    background: #E65B4B;
    border: none;
    font-weight: 700;
    color: #fff;
    width: 256px;
    padding: 15px;
    text-shadow: none;
    font-size: 15px;
    cursor: pointer;
    padding-right: 10px;
    margin-left: 10px;
    -webkit-appearance: none;
    -webkit-border-radius: 0;
    -webkit-box-shadow: rgba(0,0,0,0.3) 0px 2px 2px -1px;
    -moz-box-shadow: rgba(0,0,0,0.3) 0px 2px 2px -1px;
    box-shadow: rgba(0,0,0,0.3) 0px 2px 2px -1px;
    text-shadow: 0 1px 0 rgba(122, 122, 122, 0.85);
}
@media screen and (max-width: 800px){
        aside{
        display: block;
        width: 100%;
    }
    #principal img{
        display: none;
    }
    #subscribebutton {
        margin-left: 55px;
    }
}
@media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:landscape){
    #principal{
        display: block;
        width: 65%;
    }
    aside{
        display: block;
        width: 40%;
    }
    #principal img{
        display: none;
    }
    #subscribebutton {
        margin-left: 30px;
    }
}
@media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:portrait) {
     #principal{
        display: block;
        width: 63%;
    }
    aside{
        display: block;
        width: 30%;
    }
    #principal img{
        display: none;
    }
    #subscribebutton {
        margin-left: 20px;
        width: 200px;
    }
}