@media only screen and (min-width: 39em) and (max-width: 64em){
    .head-logo {
        width: 30%;
    }
    .logo {
        transition: 1s;
        width: 50%;
        padding-left: 15%;
    }
    .head.shead .logo {
        width: 45%;
        transition: 1s;
    }
     .head-list{
        display: none;
    }
    .phn-menu{
        display: block;
       width: 62%;
        justify-items: end;
        align-content: center;
    }
    .phn-mnu{
        position: relative;
        height: 10px;
        width: 30px;
    }
    .phn-mnu > a{
        /* align-self: self-end; */
        position: relative;
        width: 100%;

    }
    .phn-mnu > a > span{
        position: absolute;
        display: block;
        content: "";
        width: 30px;
        height: 1px;
        background: #000;
        transition: 1s;
        right: 1px;

        /* align-self: self-end;
        justify-self: flex-start; */

    }
    .phn-mnu > a > span::before{
        position: absolute;
        display: block;
        content: "";
        width: 30px;
        height: 1px;
        background: #000;
        top: -5px;
        transition: 1s;

    }  
    .phn-mnu > a > span::after{
        position: absolute;
        display: block;
        content: "";
        width: 30px;
        height: 1px;
        background: #000;
        top: 5px;
        transition: 1s;

    }
    .phn-mnu > a.opened span{
        width: 0px;
        height: 0px;
        transition: 1s;
    }
    .phn-mnu > a.opened span::before{
        top: 0px;
        transition: 1s;
        transform: rotate(40deg);
    }
    .phn-mnu > a.opened span::after{
        top: 0px;
        transition: 1s;
        transform: rotate(140deg);
    }
    
    .menu-list{
        display: none;
        background: #a3a3a3e0;
    }
    .menu-list > ul{
        width: 80%;
        margin: 0 auto;
    }
    .menu-list > ul > li{
        border-bottom: 1px solid#ececec;
        padding-top: 5%;
        text-align: end;
    }
    .menu-list > ul > li > a{
        padding-bottom: 1%;
        color: #fff;
        letter-spacing: 2px;
    }
    .menu-list > ul {
        width: 90%;
        margin: 0 auto;
    }

    .banner-txt > h3 {
        font-size: 21px;
    }
    .anechoic{
        display: block;
    }
    .anech-1 {
        width: 100%;
    }
    .anechoic-txt {
        padding-left: 2%;
        padding-top: 3%;
        width: 100%;
    }
    .anechoic-txt > h3 {
        font-size: 24px;
        width: 100%;
    }
    .anechoic-txt > p {
        font-size: 18px;
        color: #a3a3a3;
        width: 100%;
        text-align: justify;
    }
    .anechoic-img {
        padding-top: 3%;
    }
    .thrd-top > h3 {
        font-size: 30px;
    }
    .thrd-para > p {
        width: 100%;
        text-align: center;
    }
    .thrd-down {
        display: block;
    }
    .category{
        margin-top: 4%;
        padding: 2% 0%;
    }

    /* about page */

    .abt-txt > p{
        font-size: 15px;
    }
/* blog page */

.blogs {
    padding-top: 10%;
}

    /* contact page */

.cont-first{
    display: block;
    padding-top: 20%;
}
.first-para {
    width: 100%;
}
.first-para > h3 {
    width: 100%;
    font-size: 36px;
    line-height: 33px;
}
.first-para > p{
    width: 100%;
    text-align: justify;
}
.first-image {
    width: 100%;
}
/* .cont-body {
    display: block;
} */
.contacts {
    width: 50%;
    margin: 0 auto;    
}
.address {
    width: 40%;
    margin: 0 auto;
}
/* .address-img {
    display: none;
} */
 .add-img {
    width: 100%;
}


/* service page */

.service-head {
    padding-top: 10%;
}
.sub-menu {
    position: absolute;
    top: 45px;
    left: 0;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    left: 0px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}
.semi-top {
    padding-top: 13%;
}
.semi-top h1 {
    font-size: 30px;
    width: 100%;
}
.semi-top p {
    width: 100%;
}
.semi-cen-head {
    font-size: 30px;
}
.semi-cen-body {
    display: block;
}
.semi-cen-img {
    width: 100%;
}
.semi-cen-txt {
    width: 100%;
    padding: 2% 0%;
}
.standards-section {
    display: block;
    padding-top: 0%;
}
.standards-box {
    margin-top: 5%;
}
.specs-section {
    display: block;
}
.fully-top {
    display: block;
    width: 90%;
    padding-top: 15%;
}
.fully-left {
    width: 100%;
}
.fully-right {
    width: 100%;
    padding-left: 0%;
}
.fully-top-but {
    display: flex;
    justify-content: space-around;
    padding-top: 5%;
}
.fully-test {
    text-align: center;
    padding: 3% 0%;
}
.fully-table-container h2 {
    font-size: 30px;
}
.fully-last {
    width: 90%;
    display: block;
}
.last-left {
    width: 100%;
}
.last-right {
    width: 100%;
}
.hemi-top {
    padding-top: 15%;
    width: 90%;
    display: block;
}
.hemi-left {
    width: 100%;
}
.hemi-right {
    width: 100%;
    padding-left: 0%;
}
.hemi-top-but {
    padding-top: 5%;
}
.hemi-test {
    padding: 3% 0%;
}
.sound h2 {
    font-size: 30px;
}
.measurable h3 {
    font-size: 30px;
}
.wedge h3 {
    font-size: 30px;
}
.wedge-title {
    margin-bottom: 0px;
}
.options {
    width: 90%;
}
#faq .faq-list > li > a {
    width: 100%;
}
#faq .faq-answer {
    width: 90%;
}
.shielding-performance-of-dmc-rf-shielded-room-and-anechoic-chamber table {
    width: 90%;
    margin: 0 auto;
}
.rf-shielded-room-content h2 {
    font-size: 30px;
}
.spec-grid {
    width: 90%;
    margin: 0 auto;
}
}