myself.css

.clearfix:after {
    display: block;
    content: '';
    clear: both;
}

div,
body,
ul,
li,
h3 {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

a {
    color: #333;
}

.dropdown {
    height: 38px;
    text-align: center;
    line-height: 40px;
    font-size: 16px;
    display: block;
    float: right;
    border: 1px solid #111;
    border-radius: 4px;
    box-shadow: 2px 2px 2px 2px rgba(1, 1, 1, 0.2);
}

.dropdown a {
    text-decoration: none;
}

.dropdown a:hover {
    color: #ffe76c;
}

.dropdown a:active {
    color: #ffe76c;
}

.dropdown li {
    list-style: none;
    padding: 0 10px;
    height: 24px;
    border-radius: 4px;
    -webkit-transition: all ease-in-out 0.5s;
    transition: all ease-in-out 0.5s;
}

.dropdown .none {
    display: none;
}

.dropdown .dr-f-ul>li {
    float: left;
}

.dropdown .dr-f-ul>li::first-child {
    border-left: 1px solid #ccc;
}

.dropdown .dr-f-ul>li::last-child {
    border: none;
    padding-right: 0;
}

.dropdown .dr-s-ul {
    margin-left: -11px;
}

.dropdown .dr-s-ul>li::last-child {
    border-bottom: 1px solid #ccc;
}

.dropdown .dr-s-ul i {
    display: inline-block;
    width: 0;
    height: 0;
    border-bottom: 10px solid #ccc;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    -webkit-transition: all .5s;
    transition: all .5s;
}

.dropdown .dr-s-ul .addi {
    border-bottom-color: red;
    -webkit-transform: rotateX(180deg);
    transform: rotateX(180deg);
}

.drew {
    width: 100%;
    height: 400px;
}

.iconUse {
    width: 1em;
    height: 2em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
}

@media (min-width: 770px) {
    .icon {
        width: 1em;
        height: 2em;
        vertical-align: -0.15em;
        fill: currentColor;
        overflow: hidden;
    }
    .icon:hover {
        opacity: .3;
    }
    .myself {
        height: 100%;
        background: #fff;
        color: #333;
    }
    .myself aside {
        width: 200px;
        float: left;
        height: 100%;
    }
    .myself aside .head {
        text-align: center;
    }
    .myself aside .head h3 {
        color: #010101;
        font-size: 30px;
        padding: 20px;
    }
    .myself aside .head .dr {
        display: none;
    }
    .myself aside .circle {
        position: absolute;
        width: 50px;
        height: 50px;
        left: 75px;
        border-radius: 50%;
        border: 3px solid red;
        border-bottom-color: black;
        transition: all .4s;
    }
    .myself aside .circle:hover {
        transform: rotate(360deg);
        border: 3px solid black;
    }
    .myself aside .ct {
        padding: 100px 0;
    }
    .myself aside .ct ul li {
        width: 200px;
        height: 40px;
        padding: 4px 0;
        text-align: center;
        line-height: 40px;
    }
    .myself aside .ct ul li a {
        text-decoration: none;
    }
    .myself aside .ct ul li a:before {
        content: ">";
    }
    .myself aside .ct ul li a span {
        font-size: 16px;
    }
    .myself aside .ct ul li a span:hover {
        color: #ffe76c;
    }
    .myself aside .foot {
        position: fixed;
        top: 100%;
        transform: translateY(-100%);
    }
    .myself aside .foot li {
        font-size: 32px;
        margin-left: 4px;
        padding: 0 4px;
        float: left;
    }
    .myself aside .foot li a i {
        font-size: 20px;
    }
    .myself aside .foot p {
        text-align: center;
    }
    .myself aside .foot p:last-child {
        font-size: 12px;
    }
    .myself .main {
        background-size: cover;
        margin-left: -200px;
        height: 100%;
        overflow: hidden;
    }
    .myself .main #drew {
        width: 100%;
        height: 400px;
    }
    .myself .main .head {
        color: #333;
        text-align: center;
    }
    .myself .main .ct img {
        display: block;
        width: 100%;
    }
    .myself .main .foot li {
        color: #333;
        margin-bottom: 10px;
        text-indent: 2em;
    }
    .myself .main .foot>ul {
        float: left;
    }
    .myself .main .foot .skill {
        width: 50%;
    }
    .myself .main .foot .skill2 {
        width: 50%;
    }
}

@media (max-width: 770px) {
    .icon {
        width: 1em;
        height: 2em;
        vertical-align: -0.15em;
        fill: currentColor;
        overflow: hidden;
    }
    .icon:hover {
        opacity: .3;
    }
    width: 100%;
    aside {
        width: 100%;
        height: 100%;
    }
    aside .head {
        background-color: #999999;
        text-align: center;
    }
    aside .head h3 {
        height: 40px;
        line-height: 40px;
        float: left;
        margin-left: 20px;
    }
    aside .head .dr {
        height: 38px;
        text-align: center;
        line-height: 40px;
        font-size: 16px;
        display: block;
        float: right;
        border: 1px solid #111;
        border-radius: 4px;
        box-shadow: 2px 2px 2px 2px rgba(1, 1, 1, 0.2);
    }
    aside .head .dr a {
        text-decoration: none;
    }
    aside .head .dr a:hover {
        color: #ffe76c;
    }
    aside .head .dr li {
        list-style: none;
        padding: 0 10px;
        height: 24px;
        border-radius: 4px;
        -webkit-transition: all ease-in-out 0.5s;
        transition: all ease-in-out 0.5s;
    }
    aside .head .dr .none {
        display: none;
    }
    aside .head .dr .dr-f-ul>li {
        float: left;
    }
    aside .head .dr .dr-f-ul>li::first-child {
        border-left: 1px solid #ccc;
    }
    aside .head .dr .dr-f-ul>li::last-child {
        border: none;
        padding-right: 0;
    }
    aside .head .dr .dr-s-ul {
        margin-left: -11px;
    }
    aside .head .dr .dr-s-ul>li::last-child {
        border-bottom: 1px solid #ccc;
    }
    aside .head .dr .dr-s-ul i {
        display: inline-block;
        width: 0;
        height: 0;
        border-bottom: 10px solid #ccc;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
        -webkit-transition: all .5s;
        transition: all .5s;
    }
    aside .head .dr .dr-s-ul .addi {
        border-bottom-color: red;
        -webkit-transform: rotateX(180deg);
        transform: rotateX(180deg);
    }
    aside .ct {
        display: none;
    }
    aside .ct ul li {
        width: 200px;
        height: 40px;
        padding: 4px 0;
    }
    aside .ct ul li a {
        text-decoration: none;
    }
    aside .ct ul li a:before {
        content: ">";
    }
    aside .ct ul li a span {
        font-size: 16px;
    }
    aside .ct ul li a span:hover {
        color: #ffe76c;
    }
    aside .foot {
        display: none;
    }
    .main {
        height: 100%;
        background-size: cover;
    }
    .main .head h1 {
        text-align: center;
    }
    .main .ct img {
        width: 100%;
    }
    .main .foot {
        width: 100%;
    }
    .main .foot li {
        color: #333;
        margin-bottom: 10px;
        text-indent: 2em;
    }
    .main .foot>ul {
        float: left;
    }
    .main .foot .skill {
        width: 50%;
    }
    .main .foot .skill2 {
        width: 48%;
        padding-left: 2%;
    }
}