#sliverbox {
    width: 100%;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin-bottom: 0.5rem;
    resize: none;
}

#sliversubmit {
    float: right;
    margin-bottom: 0.5rem;
}

#sliverform {
    overflow: auto;
}