CSS Code Help

Hello Team,

I'm using this CSS on one of my websites but I don't what happens with this :(

#ez-toc-container {
    width: 100%;
    border-radius: 5px;
    padding: 20px;
    box-sizing: border-box;
}

div#ez-toc-container p.ez-toc-title {
    font-size: 28px;
    font-weight: 700;
}

.ez-toc-title-container {
    margin-bottom: 1em;
}

#ez-toc-container li,
#ez-toc-container ul,
#ez-toc-container ul li,
.ez-toc-widget-container,
.ez-toc-widget-container li {
    line-height: 2em;
}

#ez-toc-container li,
#ez-toc-container li a {
    color: #3c4bc5;
}

Can you clear my question :)