.test {
position: relative;
width: 300px;
height: 100px;
box-sizing: border-box;
border: 1px solid #000;
}
.test:before {
position: absolute;
display: block;
content: '';
top: -10px;
left: -10px;
right: -10px;
bottom: -10px;
border: 1px dotted #900;
}<p>Некий текст <span class='num'>1234567890</span> и еще некий текст</p>$(document.body).on('load', function () {
// тут
});.class_1 {...}
.class_2 {...}
.class_3 {...}
.class_4 {...}
...
.class_N {...}<div class='ancor' id='info'>
<h3>Info</h3>
</div>.ancor {
padding-top: 40px;
}