div.instruction{
    position: relative;
}
div.instruction ul.main{
    font-size:0.85rem;
    text-align:left;
    background-color: var(--header-color);
    color:var(--char-light);
    margin:0;
    padding-top:0.5rem;
    padding-bottom:1rem;
    padding-right:1rem;
}

div.instruction ul.main li{
    margin-top:0.2rem;
    margin-bottom:0.2rem;
}

div.instruction span.mandatory{
    font-size:1.2rem;
    color:var(--exclamation);
}

div.instruction span.dummybox{
    display: inline-block;
    width:4rem;
    margin:0.1rem 0.3rem;
    border:1px solid var(--table-border);
}

div.instruction div.button{
    position:absolute;
    right:0;
    top:0;
    width:1.5rem;
    height:1.5rem;
    cursor:pointer;
}
div.instruction ul.main.nodisp ~ div.button{
    top:0.5rem;
}
div.instruction div.button:before, 
div.instruction div.button:after {
    content: " ";
    display: block;
    float: right;
    background-color: var(--image-color);
    height: 1.3rem;
    width: 0.25rem;
    position: absolute;
    right: 0.7rem;
    top: 0.2rem;
}
div.instruction ul.main:not(.nodisp) ~ div.button:before {
    transform: rotate(45deg);
}
div.instruction ul.main:not(.nodisp) ~ div.button:after {
    transform: rotate(-45deg);
}
div.instruction ul.main.nodisp ~ div.button:before {
    transform: rotate(90deg) scale(0.85);
}
div.instruction ul.main.nodisp ~ div.button:after {
    transform: rotate(-90deg) scale(0.85);
}
div.instruction ul.main.nodisp ~ div.button{
    top: 0;
}