JSFiddle - React, Tailwind, and code Playground

HTML

<div class="link">text</div>
<div class="link">text</div>
<div class="link">text</div>

CSS

.link {
    width: 100px;
    height: 30px;
    position: relative;
    background: #ccc;
    text-align: center;
    font-size: 20px;
    float: left;
    margin-right: 10px;
    cursor: pointer;
    line-height: 26px;
}
.link:before, .link:after {
    display: block;
    position: absolute;
    content: "";
    width: 0;
    height: 0;
    top: 0;
}
.link:before {
    left: 0;
    border-top: 0;
    border-right: 0;
    border-bottom: 30px solid transparent;
    border-left: 10px solid #fff;
}
.link:after {
    right: 0;
    border-top: 30px solid transparent;
    border-right: 10px solid #fff;
    border-bottom: 0;
    border-left: 0;
}
.link:hover {
    background: green;
}