Wishlist Premium version – Problem with icon appearence

Hello,

Try to put the following code snippet to the Custom CSS section in Theme Settings

.product-grid-item .yith-wcwl-add-to-wishlist > a {
    font-size: 0;
    display: inline-block;
    position: relative;
    width: 35px;
    height: 35px;
    line-height: 35px;
    color: rgba(0,0,0,.9);
}
.product-grid-item .yith-wcwl-add-to-wishlist > a i:before {
content: "\e08a";
    font-size: 18px;
    vertical-align: middle;
    margin-right: 2px;
    display: inline-block;
    font-family: Simple-Line-Icons;
    -webkit-transition: all .2s;
    -moz-transition: all .2s;
    -o-transition: all .2s;
    transition: all .2s;
}
.product-grid-item .yith-wcwl-add-to-wishlist > a .basel-tooltip-label {
    bottom: auto;
    left: auto;
    right: 135%;
    top: 50%;
    -webkit-transform: translateX(0) translateY(-50%);
    -o-transform: translateX(0) translateY(-50%);
    -ms-transform: translateX(0) translateY(-50%);
    -sand-transform: translateX(0) translateY(-50%);
    -moz-transform: translateX(0) translateY(-50%);
    transform: translateX(0) translateY(-50%);
}
.product-grid-item .yith-wcwl-add-to-wishlist > a .basel-tooltip-label:before {
    content: "";
    position: absolute;
    top: 50%;
    bottom: auto;
    left: 99%;
    right: auto;
    color: transparent;
    font-size: 16px;
    font-family: FontAwesome;
    line-height: 5px;
    -webkit-transform: translateX(0) translateY(-50%);
    -o-transform: translateX(0) translateY(-50%);
    -ms-transform: translateX(0) translateY(-50%);
    -sand-transform: translateX(0) translateY(-50%);
    -moz-transform: translateX(0) translateY(-50%);
    transform: translateX(0) translateY(-50%);
    -webkit-transition: all .2s ease-in-out;
    -moz-transition: all .2s ease-in-out;
    -ms-transition: all .2s ease-in-out;
    -o-transition: all .2s ease-in-out;
    transition: all .2s ease-in-out;
}
.product-grid-item .yith-wcwl-add-to-wishlist > a:hover .basel-tooltip-label {
background-color: #000;
    color: #fff;
    visibility: visible;
    top: 50%;
    bottom: auto;
    left: auto;
    right: 115%;
}

Regards

Add this also

.single-product-content .entry-summary .yith-wcwl-add-to-wishlist > a {
    display: inline-block;
    vertical-align: middle;
    text-align: center;
    font-size: 14px;
    line-height: 1.5;
    color: #4E4E4E;
    text-decoration:none;
}
.single-product-content .entry-summary .yith-wcwl-add-to-wishlist > a:hover {
    color:#e70219;
}
.single-product-content .entry-summary .yith-wcwl-add-to-wishlist > a i {
    display:none;
}
.single-product-content .entry-summary .yith-wcwl-add-to-wishlist > a:before {
    content: "\e08a";
    font-size: 18px;
    vertical-align: middle;
    margin-right: 2px;
    display: inline-block;
    font-family: Simple-Line-Icons;
}

Regards

Sorry, try this please

.basel-buttons .yith-wcwl-add-to-wishlist>div>a i,
.product-image-summary .yith-wcwl-add-to-wishlist>div>a i{
    display:none;
}

Regards

Great, you are welcome!