.right-button {
    text-align: right;
    -webkit-writing-mode: horizontal-tb !important;
    -webkit-appearance: button;
    border: 1px solid #aaaaaa;
    border-radius: 3px;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.65);
    cursor: pointer;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    border-style: solid;
    border-width: 1px;
    text-rendering: auto;
    display: inline-block;
    text-align: start;
    margin: 0em;
    position: relative;
    margin-left: 0.5em;
    font: 400 11px system-ui;
}

.right-button:after {
    content: "";
    width: 70%;
    height: 2px;
    background-color: #fff;
    display: block;
    position: absolute;
    margin: auto;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0
}