.img-box{
    width: 80%;
    height: 550px;
    margin: -4rem auto 0 auto;
    display: block;
}
.--btn300-- a{
    text-decoration: none;
    color: #fff;
}
.--btn300-- a:hover{
    color: #fff;
}
.--h00--{
    font-size: 2rem;
    font-weight: bold;
}

@media all and (min-width: 360px) and (max-width: 500px){
    #outer-container{
        font-size: 50%;
    }
    .img-box{
        width: 400px;
        height: 200px;
        margin: 0 auto 0 auto;
        display: block;
    }
}
@media all and (min-width: 501px) and (max-width: 800px){
    .img-box{
        width: 500px;
        height: 300px;
        margin: 0 auto 0 auto;
        display: block;
    }
}
@media all and (min-width: 801px) and (max-width: 1200px){
    .img-box{
        width: 600px;
        height: 350px;
        margin: 0 auto 0 auto;
        display: block;
    }
}