JSFiddle - React, Tailwind, and code Playground

HTML

<div class="testg">
    <div class="content">
        Look Ma'  my scrollbars doesn't have arrows <br /><br />
        content, content, content <br /> content, content, content <br /> content, content, content s<br />  content, content, content <br/> content, content, content <br/> content, content, content d<br/>  content, content, content <br/> 
    </div>
</div>
<br/>
<div class="testg jfk-scrollbar jfk-scrollbar-borderless jfk-scrollbar-dark">
    <div class="content">
        Look Ma'  my scrollbars dissapear in chrome<br /><br />
        content, content, content <br /> content, content, content <br /> content, content, content s<br />  content, content, content <br/> content, content, content <br/> content, content, content d<br/>  content, content, content <br/> 
    </div>
</div>

CSS

.testg{ border:1px solid black;  max-height:150px;  overflow-y: scroll; overflow-x: hidden; width: 250px;}
.content{ height: 700px}

/* The google css code for scrollbars */
::-webkit-scrollbar {
    height: 16px;
    overflow: visible;
    width: 16px
}
::-webkit-scrollbar-button {
    height: 0;
    width: 0
}
::-webkit-scrollbar-track {
    background-clip: padding-box;
    border: solid transparent;
    border-width: 0 0 0 7px
}
::-webkit-scrollbar-track:horizontal {
    border-width: 7px 0 0
}
::-webkit-scrollbar-track:hover {
    background-color: rgba(0, 0, 0, .05);
    box-shadow: inset 1px 0 0 rgba(0, 0, 0, .1)
}
::-webkit-scrollbar-track:horizontal:hover {
    box-shadow: inset 0 1px 0 rgba(0, 0, 0, .1)
}
::-webkit-scrollbar-track:active {
    background-color: rgba(0, 0, 0, .05);
    box-shadow: inset 1px 0 0 rgba(0, 0, 0, .14), inset -1px 0 0 rgba(0, 0, 0, .07)
}
::-webkit-scrollbar-track:horizontal:active {
    box-shadow: inset 0 1px 0 rgba(0, 0, 0, .14), inset 0 -1px 0 rgba(0, 0, 0, .07)
}
.jfk-scrollbar-dark::-webkit-scrollbar-track:hover {
    background-color: rgba(255, 255, 255, .1);
    box-shadow: inset 1px 0 0 rgba(255, 255, 255, .2)
}
.jfk-scrollbar-dark::-webkit-scrollbar-track:horizontal:hover {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2)
}
.jfk-scrollbar-dark::-webkit-scrollbar-track:active {
    background-color: rgba(255, 255, 255, .1);
    box-shadow: inset 1px 0 0 rgba(255, 255, 255, .25), inset -1px 0 0 rgba(255, 255, 255, .15)
}
.jfk-scrollbar-dark::-webkit-scrollbar-track:horizontal:active {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .25), inset 0 -1px 0 rgba(255, 255, 255, .15)
}
::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, .2);
    background-clip: padding-box;
    border: solid transparent;
    border-width: 0 0 0 7px;
    min-height: 28px;
    padding: 100px 0 0;
    box-shadow: inset 1px 1px 0 rgba(0, 0, 0, .1), inset 0 -1px 0 rgba(0, 0, 0, .07)
}
::-webkit-scrollbar-thumb:horizontal {
   ...