My footer full width problem solved with this code
/* Set footer to full-width without changing background color */
body:not(.fse-enabled) #colophon {
max-width: calc(100% – 8px);
width: 100%;
}
@media only screen and (min-width: 560px) {
body:not(.fse-enabled) #colophon {
max-width: calc(100% – 64px);
}
}
body:not(.fse-enabled) #colophon {
width: 100%;
max-width: none;
padding: 1.5em;
display: block;
justify-content: center;
}
.site-info {
text-align: center;
}
