@media screen and (min-width: 1800px){
    .demo a {
        top: 920px !important;
    }
}

@media screen and (min-width: 768px) and (max-width: 1366px){
    .demo a {
        top: 600px !important;
    }
}

@media screen and (min-width: 1366px) and (max-width: 1600px){
    .demo a {
        top: 720px !important;
    }
}

@media screen and (min-width: 1600px) and (max-width: 1800px){
    .demo a {
        top: 830px !important;
    }
}

@media screen and (max-width: 768px){
    #section01 {
        display: none !important;
    }
}

.demo a {
    position: absolute;
    left: 50%;
    z-index: 2;
    display: inline-block;
    -webkit-transform: translate(0, -50%);
    transform: translate(0, -50%);
    color: #fff;
    font : normal 400 20px/1 'Josefin Sans', sans-serif;
    letter-spacing: .1em;
    text-decoration: none;
    transition: opacity .3s;
}
.demo a:hover {
    opacity: .5;
}

#section01 a {
    padding-top: 50px;
}
#section01 a span {
    position: absolute;
    top: 0;
    left: 50%;
    width: 24px;
    height: 24px;
    margin-left: -12px;
    border-left: 1px solid #fff;
    border-bottom: 1px solid #fff;
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
    box-sizing: border-box;
}