html {
    overflow-x: hidden;
    touch-action: pan-y; 
}
.mdiv{
    display: flex;
}
.mlf{
    
}
.mlr{
    width:20rem;
    padding-left: 0.75rem;
}
.mlr>div{
    padding: 0.25rem;
    border: 1px solid #e8e8fd;
    margin-bottom: 0.75rem;
    border-radius: 4px;
}
.night .mlr>div{
    border:1px solid #444;
}
:root {
    --lt:0;
    --rt:0;
    --rb:0;
    --lb:0;
    --ww:50%;
    --hh:50%;
}
.mlf{
    width:calc(100% - 20rem);
    height: 17rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    border: 1px solid #e8e8fd;
}
.night .mlf{
    border: 1px solid #444;
}
.demodiv{
    border-radius: var(--lt) var(--rt) var(--rb) var(--lb);
    -webkit-border-top-left-radius: var(--lt);
    -webkit-border-top-right-radius: var(--rt);
    -webkit-border-bottom-left-radius: var(--lb);
    -webkit-border-bottom-right-radius: var(--rb);
    -moz-border-radius-topleft: var(--lt);
    -moz-border-radius-topright: var(--rt);
    -moz-border-radius-bottomleft: var(--lb);
    -moz-border-radius-bottomright: var(--rb);
    width:var(--ww);
    height:var(--hh);
    border: 1px solid #009688;
    background: linear-gradient(135deg, #a7cee0 50%, #d0dea7);
}
.butdivbut{
    height: 1.8rem;
    line-height: 1.8rem;
    display: block;
    background-color: #06b672;
    text-align: center;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
}
@media screen and (max-width: 1290px){
    .mdiv {
        display:block;
    }
    .mlf {
        width:100%;
    }
    .mlr {
        width: 100%;
        padding-left:0rem;
        margin-top: 0.75rem;
    }
}