Product page.

Hello,

Site # 1:
Please deactivate all the third parties plugins not related to the theme and provide.

In order to distinguish which plugins relate to the theme and which do not, deactivate them all and then navigate to Appearance > Install plugins and activate all in the list.
This issue is caused by other CSS files.
https://gyazo.com/91dc0cd02c345272ca109b64144bdc9b

Site #2 Please add this custom CSS to Theme Settings > Custom CSS

@media (max-width: 768px) {
	body.offcanvas-sidebar-mobile .shop-content-area:not(.col-sm-12) .woodmart-shop-tools {
		position: relative;
		-webkit-box-pack: end;
		-ms-flex-pack: end;
		justify-content: flex-end;
	}
	
	body.offcanvas-sidebar-mobile .shop-content-area:not(.col-sm-12) .woodmart-show-sidebar-btn {
		position: absolute;
		top: 5px;
		left: 50%;
		transform: translate(-50%);
		-webkit-transform: translate(-50%);
	}
}

body .woodmart-show-sidebar-btn:before,
body .woodmart-sticky-sidebar-opener:after {
	  content: "\f085";
    font-family: fontawesome;
    display: inline-block;
    font-size: 16px;
		font-weight: 400;
}

body .woodmart-show-sidebar-btn:before {
	margin-right: 5px;
}

body .woodmart-show-sidebar-btn .woodmart-side-bar-icon {
display: none;
}

Best Regads

Hello,

Please try this code:

.site-mobile-menu li a {   
    font-weight: 600;
    color: #2d2a2a;
    font-size:14px;
}

Replace the values as per your needs.

Best Regards