.tp-mixed-title .txt{
position: relative;
}
.tp-mixed-title .txt:not(.icon)::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    height: 100%;
}
.tp-mixed-title .txt:not(.icon) span{
    position: relative;
    z-index: 1;
}