ul.iweathar {
    list-style-type: none;
}

ul.iweathar > li > span {
    display: inline-block;
    width: 200px;
    font-weight: bold;
    text-align: right;
    background: #CCE9FF;
    padding: 2px;
}

ul.iweathar > li > span::after {
    content: ": ";
}

div.iweathar span {
    display: inline-block;
    width: 100%;
    font-weight: bold;
    background: #CCE9FF;
}