Storyline Player Custom NEXT Button

function addCssToHead(cssRules) {

    var styleElement = document.createElement('style');


    styleElement.textContent = cssRules;

    document.head.appendChild(styleElement);
}

var css = `  #next.cs-button.btn {

    border-radius: 50px !important;
    border: 0.5px solid rgba(255, 255, 255, 0.349) !important;
    background-color: rgb(12, 12, 12) !important;
    margin: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: hidden !important;
    position: relative !important;
    transition: background-color 0.5s cubic-bezier(0.25, 1, 0.5, 1), transform 0.4s cubic-bezier(0.25, 1, 0.5, 1) !important;
    margin: none !important;
}

#next.cs-button.btn .view-content {

    width: 100% !important;
    position: relative !important;
}

#next.cs-button.btn .btn-icon {
    width: 30px !important;
    height: 30px !important;
    background: linear-gradient(to bottom, rgb(255, 136, 255), rgb(172, 70, 255)) !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: absolute !important;
    left: 0 !important;
    z-index: 2 !important;
    transition: width 0.5s cubic-bezier(0.25, 1, 0.5, 1), border-radius 0.5s cubic-bezier(0.25, 1, 0.5, 1) !important;
}

#next.cs-button.btn .cs-icon.next-icon {
    width: 10px !important;
    height: 18px !important;
    fill: white !important;
    border-radius: 1px !important;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1) !important;
}

#next.cs-button.btn .text {
    height: 100% !important;
    margin-left: 10px !important;
    width: 60px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: white !important;
    z-index: 1 !important;

    transition: width 0.5s cubic-bezier(0.25, 1, 0.5, 1), transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), font-size 0.5s ease, opacity 0.5s ease !important;
}

#next.cs-button.btn:hover .btn-icon {
    width: 100% !important;
    border-radius: 50px !important;
    transition-duration: 0.5s !important;
}

#next.cs-button.btn:hover .text {
    transform: translateX(20px) !important;
    width: 0 !important;
    font-size: 0 !important;
    opacity: 0 !important;
    transition-duration: 0.5s !important;
}

#next.cs-button.btn:hover .cs-icon.next-icon {
    transform: scale(1.2) !important;
}


#next.cs-button.btn.cs-disabled {
    opacity: 0.6 !important;
    cursor: not-allowed !important;
}

#next.cs-button.btn.cs-disabled .btn-icon {
    background: linear-gradient(to bottom, rgb(180, 180, 180), rgb(120, 120, 120)) !important;
}

#next.cs-button.btn.cs-disabled:hover .btn-icon {
    width: 30px !important;
}

#next.cs-button.btn.cs-disabled:hover .text {
    transform: none !important;
    width: 60px !important;
    font-size: 1.04em !important;
}

#next.cs-button.btn.cs-disabled:active {
    transform: none !important;
}

#next.cs-button.btn .text  {
   margin-left: 25px !important;
    margin-right: 0px !important;
} `;


addCssToHead(css);