.gt_m.ct h2 { font-size:16px; line-height: 29px; }
.gioithieu  {  line-height:30px;  }
.gioithieu h1 { color: var(--color-a);
text-transform: uppercase;
font-weight: 600;
text-align: center;
padding-bottom: 30px;}
.gioithieu h1 img { width: 30px;
position: absolute;
left: 49%;
right: 0;
text-align: center;
bottom: -14px;
z-index: 9;  }
.gioithieu h1::before {   } 
.gioithieu h1::after { 
content: ' ';
    display: block;
    position: absolute;
    height: 25px;
    bottom: -2px;
    left: 41%;
    width: 300px;
    background: url(title-index.jpg) no-repeat;
}