.building{
    height: 100px;
    width: 100%;
    border: 1px solid #000;
    position: relative;


}
.building .text-m{
    line-height: 100px;
    display: inline-block;
    font-size: 25px;
}
.building .btn{
    float: right;
    height: 100%;
    background-color: lightblue;
}
.building .btn.upgrade{
    background-color: lightpink;
}
.creature{
    height: 95px;
    width: 90px;
    display: inline-block;
    background-size: cover;
    background: no-repeat 50% 50%;
}