.blog {
    position: absolute;
    width: 100%;
    min-height: 100%;
}

.controller {
    position: fixed;
    right: 10px;
    top: 20%;
    background: #87c2fd;
    height: 30px;
    border-radius: 5px;
    display: flex;
    align-items: center;
}

.tall {
    height: 100px;
    position: relative;
    margin-left: 50%;
    width: 100px;
    border: 5px solid #2caa2e;
    background-color: rgba(1, 129, 1, 0.5);
    margin-top: 200px;
    margin-bottom: 200px;
}

.app-bg {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
}


.tree_head {
    object-position: center;
    object-fit: cover;

}

.tree_foot {
    object-position: center;
    object-fit: cover;
}

.tree_body {
    background-image: url("tree_body.png");
    background-repeat: repeat-y;
    flex: 1;
}