.page-content{
    width: 100%;
    height: 100%;
}

#scrollUpButton{
    background-color: #d9534f;
    border-radius: 50%;
    position: fixed;
    bottom: 20px;
    right: 20px;
    box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.5);
    -webkit-box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.5);
    -moz-box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.5);
    height: 60px;
    width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
#scrollUpButton img{
    height: 40px;
    width: 40px;
}

@media screen and (max-width: 840px) {
    #scrollUpButton{
        height: 50px;
        width: 50px;
    }
    #scrollUpButton img{
        height: 30px;
        width: 30px;
    }
}