main.css

:root{
    --default-color: red;
}

html {
    font-family: sans-serif;
    font-size: 14px;
    word-spacing: 1px;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    box-sizing: border-box
}

*,
::after,
::before {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

body {
    margin: 0 !important;
    padding: 0 !important
}

.main-container {
    z-index: 999999999;
    height: 600px;
    width: 400px;
    margin: 0 20px;
    background: #fff;
    box-shadow: 0 0 0 2px rgba(92, 106, 196, .2);
    position: fixed;
    right: 0.2%;
    bottom: 90px;
    border-radius: 5px;
    display: none;
    -webkit-animation: fadeIn 1s ease-in;
    animation: fadeIn 1s ease-in;
    overflow-x: hidden;
}

.open-container {
    display: block !important
}

.widget-header {
    background: var(--default-color);
    display: flex;
    justify-content: flex-end;
    padding: 1rem;
    align-items: center;
    display: none;
    width: 100% !important;
    height: 50px
}

.widget-footer {
    display: grid;
    place-content: center;
    border-top: 1px solid rgba(92, 106, 196, .4);
    height: 40px
}

.footer-content {
    font-family: sans-serif;
    color:var(--default-color);
}

.close-action-btn {
    cursor: pointer;
}

.close-action-btn svg {
    height: 30px;
    fill: #fff;
    width: 30px
}

.widget-content {
    height: 560px;
    width: 100%;
}

.eazido-widget .eazido-widget-launcher {
    position: fixed;
    z-index: 2147483003;
    bottom: 20px;
    right: 25px;
    width: 60px;
    height: 60px;
    cursor: pointer
}

.eazido-widget-launcher-icon-open,
.eazido-widget-launcher-icon-close {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 0;
    background: var(--default-color);
    box-shadow: 2px 2px 15px 1px var(--default-color);
    width: 60px;
    height: 60px;
    transition: transform .1s linear,
    opacity 80ms linear
}

.eazido-widget-launcher-icon-close svg,
.eazido-widget-launcher-icon-open svg {
    width: 45px;
    height: 45px
}

.eazido-widget-launcher-icon svg path {
    fill: #fff !important
}

.eazido-widget-iframe {
    width: 100%;
    height: 100%;
    border: none
}

.closeBtn {
    width: 500px;
    height: 100px;
    z-index: 9999999999999;
    position: absolute
}

@media (max-width:768px) {
    .eazido-widget-launcher-icon-close {
        display: none
    }

    .main-container {
        height: 100vh;
        width: 100%;
        margin: 0 0;
        background: #fff;
        border: none;
        position: fixed;
        top: 0;
        right: 0;
        border-radius: 0;
        display: none;
        -webkit-animation: fadeIn 1s ease-in;
        animation: fadeIn 1s ease-in;
        z-index: 999999999999999;
        overflow-x: hidden
    }

    .widget-header {
        display: flex
    }

    .widget-footer {
        position: fixed;
        background: #fff;
        width: 100%;
        display: grid;
        place-content: center
    }

    .footer-content {
        font-family: sans-serif;
        color: var(--default-color);
    }

    .widget-content {
        height: 89vh;
        width: 100%;
    }
}

@-webkit-keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

@keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}