header .menu-btn{
    width: 50px;
    height: 40px;
    display: inline-block;
    position: absolute;
    top: 1.5em;
    right: 0;
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header .menu-btn{
        width: 30px;
        height: 25px;
        top: 30px;
        right: 10px;
    }
}

header .menu-btn .menu-font{
    display: block;
}
header.menu-opened .menu-btn .menu-font{
    display: none;
}
header .menu-btn .close-font{
    display: none;
}
header.menu-opened .menu-btn .close-font{
    display: block;
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header .menu-btn .menu-font,
    header.menu-opened .menu-btn .menu-font,
    header .menu-btn .close-font,
    header.menu-opened .menu-btn .close-font{
        display: none;
    }
}
header .menu-btn .lines{
    display: inline-block;
    width: 100%;
    height: 2px;
    border-radius: 1em;
    background: #0096e0;
    transition: 0.3s;
    position: relative;
    top: -3px;
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header .menu-btn .lines{
        height: 3px;
        top: auto;
    }
}
header.menu-opened .menu-btn .lines {
    width: 50%;
    transition: background 0.3s 0s ease;
    background: transparent;
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header.menu-opened .menu-btn .lines {
        width: 100%;
    }
}
header .menu-btn .lines:before, header .menu-btn .lines:after {
    display: inline-block;
    width: 100%;
    height: 2px;
    background: #0096e0;
    border-radius: 1em;
    transition: 0.3s;
    position: absolute;
    left: 0;
    content: '';
    /*-webkit-transform-origin: 0.28571rem center;
    transform-origin: 0.28571rem center;*/
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header .menu-btn .lines:before,
    header .menu-btn .lines:after{
        height: 3px;
    }
}
header .menu-btn .lines:before, header .menu-btn .lines:after{
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
    transition: top 0.3s 0.6s ease,-webkit-transform 0.3s ease;
    transition: top 0.3s 0.6s ease,transform 0.3s ease;
}
header.menu-opened .menu-btn .lines:before, header.menu-opened .menu-btn .lines:after{
    transition: top 0.3s ease,-webkit-transform 0.3s 0.5s ease;
    transition: top 0.3s ease,transform 0.3s 0.5s ease;
    top: 0;
    width: 100%;
}
header .menu-btn .lines:before{
    top: 6px;
}
header.menu-opened .menu-btn .lines:before{
    -webkit-transform: rotate3d(0,0,1,35deg);
    transform: rotate3d(0,0,1,35deg);
}
header .menu-btn .lines:after{
    top: -6px;
}
header.menu-opened .menu-btn .lines:after{
    -webkit-transform: rotate3d(0,0,1,-35deg);
    transform: rotate3d(0,0,1,-35deg);
}
@media screen and (max-width:480px), only screen and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 2) {
    header .menu-btn .lines:before{
        top: 8px;
    }
    header.menu-opened .menu-btn .lines:before{
        -webkit-transform: rotate3d(0,0,1,45deg);
        transform: rotate3d(0,0,1,45deg);
    }
    header .menu-btn .lines:after{
        top: -8px;
    }
    header.menu-opened .menu-btn .lines:after{
        -webkit-transform: rotate3d(0,0,1,-45deg);
        transform: rotate3d(0,0,1,-45deg);
    }
}