* {
    margin: 0;
    padding: 0;
}


body {
    background-color: #eee;
}
.wrapper {
    margin: 0 auto;
    width: 1000px;
}
.textyo {
 
    text-align: left;
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
    padding: 20px 0px;
}

.imgyo {
    width: 306px;
    height: 396px;
    background-image: url(../imgs/yo-01.jpg);
    background-size: 100%;
    background-position: center;
    
}
nav {
    width: 100%;
    height: 100px;
    background-color: #fff;
    
}

ul {
  margin-left: 0px;
}

ul li {
    list-style: none;
    display: inline-block;
    float: left;
    line-height: 100px;
    
}

ul li a { 
    display: block;
    text-decoration: none;
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
    color: #1e1e1e;
    padding: 0 20px;
    
}
ul li a:hover { 
   color:red;
}