.section.add_this-section {
    z-index: 999999;
    position: fixed;
    bottom: calc(5% + 80px);
    right: 20px;
}
.section.add_this-section ul.add_this {
    list-style: none;
    margin: 0;
    display: inline-flex;
    flex-direction: column;
    gap: 15px;
}
.section.add_this-section ul.add_this li .add_this-inner {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px 0 rgb(0 0 0 / 10%);
    position: relative;
    display: block;
}
.section.add_this-section ul.add_this li .add_this-inner > .title {
    font-weight: 300;
    position: absolute;
    top: 4px;
    right: 55px;
    z-index: 9;
    line-height: normal;
    padding: 5px 10px;
    width: auto;
    border-radius: 5px;
    font-size: 11px;
    color: #fff;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.8);
    visibility: hidden;
    opacity: 0;
    transition: all 200ms linear;
}
.section.add_this-section ul.add_this li .add_this-inner:hover > .title {
    visibility: visible;
    opacity: 1;
}
.section.add_this-section ul.add_this li .add_this-inner > .title::after {
    content: "";
    width: 0;
    height: 0;
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent transparent rgba(0, 0, 0, 0.8);
    position: absolute;
    left: 100%;
    top: 0;
    bottom: 0;
    margin: auto;
    transition: all 200ms linear;
}

/* ****************************************************** */
#button-contact-vr {
    right: 0;
}
#button-contact-vr {
    position: fixed;
    bottom: 25%;
    z-index: 99999;
}
#gom-all-in-one .button-contact {
    transition: 1.6s all;
}
#button-contact-vr .button-contact {
    position: relative;
    margin-top: -5px;
}
#button-contact-vr .button-contact .phone-vr {
    position: relative;
    visibility: visible;
    background-color: transparent;
    width: 90px;
    height: 90px;
    cursor: pointer;
    z-index: 11;
    -webkit-backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transition: visibility .5s;
    left: 0;
    bottom: 0;
    display: block;
}
.phone-vr-circle-fill {
    width: 65px;
    height: 65px;
    top: 12px;
    left: 12px;
    position: absolute;
    box-shadow: 0 0 0 0 #c31d1d;
    background-color: rgba(230,8,8,0.7);
    border-radius: 50%;
    border: 2px solid transparent;
    animation: phone-vr-circle-fill 2.3s infinite ease-in-out;
    transition: all .5s;
    transform-origin: 50% 50%;
    animation: zoom 1.3s infinite;
}
#zalo-vr .phone-vr-circle-fill {
    box-shadow: 0 0 0 0 #2196F3;
    background-color: rgba(33,150,243,0.7);
}
.phone-vr-img-circle {
    background-color: #e60808;
    width: 40px;
    height: 40px;
    line-height: 40px;
    top: 25px;
    left: 25px;
    position: absolute;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    animation: phone-vr-circle-fill 1s infinite ease-in-out;
}
#zalo-vr .phone-vr-img-circle {
    background-color: #2196F3;
}
@keyframes phone-vr-circle-fill {
    0% {
        -webkit-transform: rotate(0) scale(1) skew(1deg);
    }
    
    10% {
        -webkit-transform: rotate(-25deg) scale(1) skew(1deg);
    }
    20% {
        -webkit-transform: rotate(25deg) scale(1) skew(1deg);
    }
    30% {
        -webkit-transform: rotate(-25deg) scale(1) skew(1deg);
    }
    40% {
        -webkit-transform: rotate(25deg) scale(1) skew(1deg);
    }
    50% {
        -webkit-transform: rotate(0) scale(1) skew(1deg);
    }
    100% {
        -webkit-transform: rotate(0) scale(1) skew(1deg);
    }
}
@keyframes zoom {
    0% {
        transform: scale(.9);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 15px transparent;
    }
    100% {
        transform: scale(.9);
        box-shadow: 0 0 0 0 transparent;
    }
}
.phone-vr-img-circle a {
    display: block;
    line-height: 37px;
}
.phone-vr-img-circle img {
    max-height: 25px;
    max-width: 27px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}