scrollbar.css

.output-html {
    overflow-x: scroll;
    overflow-y: visible;
}

.output-html::-webkit-scrollbar:horizontal {
    height: 11px;
}

.output-html::-webkit-scrollbar-thumb {
    border-radius: 8px;
    border: 2px solid white;
    background-color: rgba(0, 0, 0, .5);
}

.output-html::-webkit-scrollbar-track { 
    background-color: #fff; 
    border-radius: 8px; 
} 

.spans {
    min-height: 75px;
}