Greasy Fork

I forgot This

for the play button and login page, delete all the code from login page (ctrl + f and search logon) and paste it with

/* Login Page */



/* sign up button */

.rbx-header .rbx-navbar-right-nav li > .nav-menu-title {
background: url(https://web.archive.org/web/20120320185530im_/https://www.roblox.com/images/Holiday3Button.png) !important;
font-size: 0;
width: 144px;
height: 39px;
border-radius: 0;
margin-top: -78px;
border: none;
margin-right: -22px;
}

.rbx-header .rbx-navbar-right {
background-color: transparent;
}

/* Login Page */

.login-container {
margin: 0;
position: relative;
top: 10px;
width: 300px;
}

.section-content {
background: url(https://www.roblox.com/images/cssspecific/rbx2/standardBox_01_bkg.png) top repeat-x #fff;
border: 1px solid #aaa;
padding: 5px;
margin-bottom: 8px;
height: 137px;
width: 300px;
margin-top: 34px;
}

.login-container .login-header {
margin-bottom: 0;
position: absolute;
top: -34px;
left: -1px;
height: 34px;
background: url(https://www.roblox.com/images/cssspecific/rbx2/tab_black_33h_t2.png) no-repeat right top;
padding: 5px 12px 0 7px;
color: white;
font-weight: bold;
font-size: 0;
width: 300px;
line-height: 22px;
text-align: left;
border-top-left-radius: 5px;
}

.login-container .login-header:before {
content: "Login";
font-size: 20px;
cursor: text;
}

.login-container .input-field {
width: 144px;
height: 29px;
border: 2px solid rgb(204, 204, 204);
border-radius: 0;
padding: 5px;
font-family: verdana;
font-size: 12px;
color: black;
margin: 0 auto;
}

.login-container .input-field::placeholder {
font-size: 0;
}

.login-container .input-field:focus {
border: 2px solid rgb(165, 208, 255);
}

.login-container .username-form-group {
margin-bottom: 3px;
}

.login-container .username-form-group::before {
content: "Username: ";
font-family: verdana;
cursor: text;
font-size: 12px;
text-align: right;
position: absolute;
top: 7px;
}

.login-container .password-form-group::before {
content: "Password: ";
font-family: verdana;
cursor: text;
font-size: 12px;
text-align: right;
position: absolute;
top: 39px;
left: 7.45px;
}

.login-container .login-button {
background-color: #F5CD2F !important;
border: 1px solid #6E99C9 !important;
border-radius: 0 !important;
padding: 5px;
font-size: 0px;
font-family: verdana;
font-weight: bold;
color: black;
width: 48px;
height: 27px;
line-height: 15px;
margin: 0;
float: right;
position: absolute;
top: 38px;
left: 225px;
}

.login-container .login-button:hover {
background-color: #FF9D2F !important;
}

.login-container .login-button:before {
content: "Login";
font-size: 12px;
}

.login-container .forgot-credentials-link {
margin: 0;
}

.login-container .forgot-credentials-link .text-link {
font-size: 0px;
color: #095fb5;
font-family: verdana;
}

.login-container .forgot-credentials-link .text-link:before {
content: "Forgot your password?";
font-size: 11px;
}

.login-container .alternative-login-divider-container, .login-container .cross-device-login-button {
display: none;
}

.login-container .signup-option {
margin: 0;
position: absolute;
top: -1px;
left: 307px;
width: 582px;
height: 137px;
background: url(https://www.roblox.com/images/cssspecific/rbx2/standardBox_01_bkg.png) top repeat-x #fff;
border: 1px solid #aaa;
padding: 5px;
}

.login-container .signup-option:before {
content: "Create a Free ROBLOX Account";
cursor: text;
width: 582px;
height: 34px;
padding: 5px 12px 0 7px;
background: url(https://www.roblox.com/images/cssspecific/rbx2/tab_black_33h_t2.png) no-repeat right top;
font-size: 20px;
font-weight: bold;
color: white;
display: block;
text-align: left;
border-top-left-radius: 5px;
position: absolute;
top: -34px;
left: -1px;
}

.no-account-text {
position: relative;
top: 10px;
bottom: 10px;
font-family: verdana;
color: black;
font-size: 0;
text-align: left;
line-height: 6px;
}

.no-account-text:before {
content: "Creating an account on ROBLOX allows you to customize your character, make friends, build places, earn money, and more!";
font-size: 12px;
cursor: text;
text-align: left;
line-height: .8em;
}

#sign-up-link {
position: absolute;
top: 75px;
left: 260px;
margin: 0;
background: #F5CD2F;
border: 1px solid #6E99C9;
font-family: verdana;
font-weight: bold;
font-size: 15px;
color: black;
padding: 5px;
}

#sign-up-link:hover {
background-color: #FF9D2F;
text-decoration: none;
}

#wrap, #MasterContainer, .container-footer {
margin-bottom: 312px;
}

(btw i forgot to mention, this code is from another theme