.bem-search {
    position: relative;
}

.bem-search::before {
    background-image: url(./img/search.svg);
    background-position: 0 0;
    content: "";
    display: inline-block;
    height: 18px;
    width: 18px;
    top: calc(50% - 10px);
    position: absolute;
    left: 20px;
}

.bem-search__string {
    width: 100%;
    height: 30px;
    border-radius: 4px;
    box-shadow: inset 0 1px 2px 0 rgba(102, 113, 123, 0.21), inset 0 0 0 1px rgba(102, 113, 123, 0.25);
    border: none;
    background-color: #ffffff;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 5px 0 5px 50px;
    font-family: Roboto;
    font-size: 16px;
    color: #919eab;
}

.bem-grid__search-block_no-padding .bem-search__string
{
    border: none;
    box-shadow: none;
}