Deformace horizontálního menu

nav {
    width: 100%;
    height: 80px;
    background: #ffffff;
    margin: 0;
}

ul {
    text-align: right;
}

ul li {
    font: 17px Verdana, 'Lucida Grande';
    cursor: pointer;
    -webkit-transition: padding .05s linear;
    -moz-transition: padding .05s linear;
    -ms-transition: padding .05s linear;
    -o-transition: padding .05s linear;
    transition: padding .05s linear;
}
ul li.drop {
    position: relative;
}
ul > li {
    display: inline-block;
}
ul li a {
    line-height: 80px;
    padding: 0 20px;
    color: #777;
    -webkit-transition: all .1s ease-out;
    -moz-transition: all .1s ease-out;
    -ms-transition: all .1s ease-out;
    -o-transition: all .1s ease-out;
    transition: all .1s ease-out;
}
ul li a:hover {
    color: #359FED;
}

.dropOut .triangle {
    width: 0;
    height: 0;
    position: absolute;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
    top: -8px;
    left: 50%;
    margin-left: -8px;
}
.dropdownContain {
    height: 200px;
    width: 160px;
    position: absolute;
    z-index: 2;
    left: 50%;
    margin-left: -80px; /* half of width */
    top: -400px;
}
.dropOut {
    width: 160px;
    background: white;
    float: left;
    position: relative;
    margin-top: 0px;
    opacity: 0;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-box-shadow: 0 1px 6px rgba(0,0,0,.15);
    -moz-box-shadow: 0 1px 6px rgba(0,0,0,.15);
    box-shadow: 0 1px 6px rgba(0,0,0,.15);
    -webkit-transition: all .1s ease-out;
    -moz-transition: all .1s ease-out;
    -ms-transition: all .1s ease-out;
    -o-transition: all .1s ease-out;
    transition: all .1s ease-out;
}

.dropOut ul {
    float: left;
    padding: 10px 0;
}
.dropOut ul li {
    text-align: left;
    float: left;
    width: 125px;
    padding: 12px 0 10px 15px;
    margin: 0px 10px;
    color: #777;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-transition: background .1s ease-out;
    -moz-transition: background .1s ease-out;
    -ms-transition: background .1s ease-out;
    -o-transition: background .1s ease-out;
    transition: background .1s ease-out;
}

.dropOut ul li:hover {
    background: #f6f6f6;
}

ul li:hover a { color: #359FED; }
ul li:hover .dropdownContain { top: 65px; }
ul li:hover .underline { border-bottom-color: #777; }
ul li:hover .dropOut { opacity: 1; margin-top: 8px; }