Why is the layout of the element floating on other monitors?

Question

Monitors

There is a block (SHIPSNAB.RU EQUIPMENT OF VESSELS WITH NAVIGATIONAL, EMERGENCY AND NAVIGATION EQUIPMENT
)
css(
media screen and (max-width: 1599px) and (min-width: 1300px) {
nav[role=navigation] .nav-justified {
width: 40%;
}
.container-page #block-block-15 {
margin-top: 150px;
margin-right: 225px;
}
.container-page #block-block-15 p {
float: right;
width: 500px;
height: 170px;
}
.container-page #block-block-15 p span:nth-child(1) {
font-size: 65px;
color: #bea67c;
display: block;
height: 90px;
}
.container-page #block-block-15 p span:nth-child(2) {
color: #fff;
font-size: 12px;
}
}
)
there are also 2 laptops, 1) on which the site is made and 2) simple.
like this on the 1st laptop.

and like this on the 2nd

styles are all the same, I cleaned the caches.
Screen resolution is the same, 1366x768
flooded the site for hosting ( ship.wind2015.tmweb.ru )
There is something wrong, sorry, the first time here.